Here we introduce ourselves to conjugate acids and bases. Follow the lesson and contact me for the discussions
Wednesday, January 26, 2011
Friday, January 21, 2011
Acids, Bases and Salts
Acids In everyday life we deal with many compounds that chemists classify as acids. For example, orange juice and grapefruit juice contain citric acid. These juices, and others, also contain ascorbic acid, a substance more commonly known as Vitamin C. Salads are often flavored with vinegar, which contains dilute acetic acid. Boric acid is a substance that is sometimes used to wash the eyes. In any chemistry laboratory, we find acids such as hydrochloric acid, sulfuric acid, and nitric acid. These acids are called mineral acids because they can be prepared from naturally occurring compounds called minerals. Mineral acids are generally stronger than household acids, and should be handled with great care because they can burn skin and clothing. Bases: Ammonium hydroxide, or ammonia water, is very irritating to the nose and the eyes. This substance, called a hydroxide, or a base, is often used in the home for cleaning because bases generally dissolve grease. Milk of magnesia (magnesium hydroxide), which is used as an antacid, is a base; lye (sodium hydroxide), which is used in the manufacture of soap, is another familiar example of base. Bases are ionic compounds containing metal ions and hydroxide ions.
For example, sodium hydroxide contains sodium ions and hydroxide ions. When sodium metal is placed in water, sodium hydroxide is formed and hydrogen gas is released. Since the formula for water can be written as HOH instead of H2O, the reaction involves single replacement: 2 Na (s) + 2 HOH (l) ��2 NaOH (aq) + H2 (g) Salts: Many chemical compounds may be classified as salts. The salt most familiar to all of us is table salt -- sodium chloride. Baking soda is the salt sodium bicarbonate. Magnesium sulfate, also called Epsom salts, is often found in the home In general, salts are ionic compounds that are composed of metallic ions and nonmetallic ions. For example, sodium chloride is composed of metallic sodium ions and nonmetallic chloride ions. Some salts are composed of metallic polyatomic ions and nonmetallic polyatomic ions (ammonium nitrate is composed of ammonium ions and nitrate ions).
For example, sodium hydroxide contains sodium ions and hydroxide ions. When sodium metal is placed in water, sodium hydroxide is formed and hydrogen gas is released. Since the formula for water can be written as HOH instead of H2O, the reaction involves single replacement: 2 Na (s) + 2 HOH (l) ��2 NaOH (aq) + H2 (g) Salts: Many chemical compounds may be classified as salts. The salt most familiar to all of us is table salt -- sodium chloride. Baking soda is the salt sodium bicarbonate. Magnesium sulfate, also called Epsom salts, is often found in the home In general, salts are ionic compounds that are composed of metallic ions and nonmetallic ions. For example, sodium chloride is composed of metallic sodium ions and nonmetallic chloride ions. Some salts are composed of metallic polyatomic ions and nonmetallic polyatomic ions (ammonium nitrate is composed of ammonium ions and nitrate ions).
Accreditation of courses with IAO
I was finally able to complete the accreditation form. Whiles we waitenow for IAO to inform us of the outcome, we are seriously working on the programmes
Tuesday, January 18, 2011
The Periodic Table
Welcome to todays lesson on the periodic table. Lets start with a song on the elements
Now that we are true with the song lets move on for details on the elements
In our next activity, we are going to learn about ionic and covalent bonds
Now that we are true with the song lets move on for details on the elements
In our next activity, we are going to learn about ionic and covalent bonds
Sunday, January 16, 2011
A new Day
Good morning all.
Ones in a brand new day. Do remember to praise God for his mercies and protection. We will be looking at lesson two today. It will be on the atom
Ones in a brand new day. Do remember to praise God for his mercies and protection. We will be looking at lesson two today. It will be on the atom
Saturday, January 15, 2011
Accreditation of course
we are currently in the process of getting accreditation from the International Accreditation organisation to enable give certificates in Diploma and possible degree programmes we are running online.
Patrons will soon earn certificates that can be used world wide in the fields of computer education and communication.
Distance Education Students Matriculated at the University of Education, Winneba
576 Diploma in Basic Education Students and 477 Bachelor in Education students were matriculated on Saturday, January 15, 2011 in Winneba. These are students from the Southern sector pursuing distance education programmes at the University of Education, Winneba. Those from the Northern sector would be matriculated on Tuesday January 18, 2011 at the College of Technology Education campus - Kumasi
Lesson on the Digestive system
We starting our series on SHS Science in Ghana.
In this first lesson, we are going to learn about the Digestive system.
Introduction
Review
Please do come back to answer questions on what you have learnet
University of Education Admissions
The University of Education, Winneba Admissions for 2011/2012 academic year is underway. This time, it is purely online. The admissions is into the fulltime graduate, undergraduate, diploma and other certificate programmes. There are a number of sandwich and distance education programmes also on offer.
Interested applicants should please go to the universities main site for details or click here to apply online. I wish you well.
Where there is a way
Just looking back, I am with the conviction that, I will be able to fulfill the dream of helping integrate ICT into the teaching learning process much faster than planned.
I am therefore burning the mid-night candle currently to ensure that the dream becomes a reality.
Friday, January 14, 2011
Happy Birthday - Martina Molinová
Where ever you meet my good friend Martina Molinová, please wish her a happy birthday for me.
Martina, even as you clock one more year today, May the hands of the Almighty God continue to bless you. Happy Birhtday
Tamale Metro consistently performs poorly in BECE
The Tamale Metropolis [reported] has, for seven years, been performing poorly at the Basic Education Certificate Examination (BECE).
In 2004 the Metropolis was 60th on the BECE league table in the country and in 2005 and 2006 it wase the 69th and 88th respectively, while in 2007 and 2008 it placed 91st and 89th respectively.
For 2009 and 2010 it had the unenviable record of being placed as the 98th and 103rd on the BECE league table.
Alhaji Abudulai Haruna Friday, the Tamale Metropolitan Chief Executive, said this at a Town Hall Meeting in Tamale on Thursday to throw light on the achievements and challenges facing the Assembly during its two years in Office.
Alhaji Friday attributed the abysmal performance of the Metropolis in the BECE to among other things to inadequate funds to ensure effective monitoring and supervision that had resulted in teachers' lateness or absenteeism and indiscipline on the part of students. more>>
In 2004 the Metropolis was 60th on the BECE league table in the country and in 2005 and 2006 it wase the 69th and 88th respectively, while in 2007 and 2008 it placed 91st and 89th respectively.
For 2009 and 2010 it had the unenviable record of being placed as the 98th and 103rd on the BECE league table.
Alhaji Abudulai Haruna Friday, the Tamale Metropolitan Chief Executive, said this at a Town Hall Meeting in Tamale on Thursday to throw light on the achievements and challenges facing the Assembly during its two years in Office.
Alhaji Friday attributed the abysmal performance of the Metropolis in the BECE to among other things to inadequate funds to ensure effective monitoring and supervision that had resulted in teachers' lateness or absenteeism and indiscipline on the part of students. more>>
Just learnt about Blocks
I noticed that, with blocks, one can effectively organise his site to look the way he wants
Coming Back to my Blog
Hi all,
I am now studying how to design websites with Drupal a content management system. From things I have read, it is mush easier working in this platform than in other cms, i will keep you posted though on how far I have got
Thursday, March 20, 2008
What a friendly Match
The final exams is just ending, and hmmmmmmmmmmm!!!!!, it was a friendly match in its own class.
Well even though the exam was in a class of its own, i personally enjoyed every single bit of the course. Back to the exams, the effect it had on me was actually opening me into a field that will be completely new to the designer.
Well even though the exam was in a class of its own, i personally enjoyed every single bit of the course. Back to the exams, the effect it had on me was actually opening me into a field that will be completely new to the designer.
Tuesday, March 11, 2008
An example of a good instructional design
Even as we gradually come to the end of a simple, intensive and interesting course of designing instructions, I was wondering if we could have an example of a good instruction.
I was still in thought when it suddenly dawn on me that, what i actually set out to find out 'an example of a well designed instruction' was in fact what i was reading.
Prof Moore's instructions were but a piece in its own class. What a design, he so placed it that, the entire 'fat' was covered in a short period. The lazy student was not given any chance to say 'I will not learn' --- if you doubt me, go look at the final exams sample. Learning was structured such that, it was all fun -- even though we did it under muuch pressure from our work.
You know what i personnally admire about the programme, there simply was no 'stupid' student. I vividly remember my good friend ----who was in shock at his scores in the quiz. Not in shock for failin...no..but shoked that, he too can perform like that, in a course he taught he could not follow. The magic was real, he picked up so fast that, i have to now occaissionally consult the person who relied on me at the beginning.
There are other good practices Prof used, discussions for feedback, case studies for peer-to-peer work, and the list can keep going on. Looking at the structure, I am positive all forms of instructions could be made real easy.
In case I left out some qualities -- which i am sure i did, on Prof's work, do let me know about them in your comments.
However, if you disagree with me, why not, let me know why i could be wrong.
Well, keep reading, the exams will soon be here with us.
I was still in thought when it suddenly dawn on me that, what i actually set out to find out 'an example of a well designed instruction' was in fact what i was reading.
Prof Moore's instructions were but a piece in its own class. What a design, he so placed it that, the entire 'fat' was covered in a short period. The lazy student was not given any chance to say 'I will not learn' --- if you doubt me, go look at the final exams sample. Learning was structured such that, it was all fun -- even though we did it under muuch pressure from our work.
You know what i personnally admire about the programme, there simply was no 'stupid' student. I vividly remember my good friend ----who was in shock at his scores in the quiz. Not in shock for failin...no..but shoked that, he too can perform like that, in a course he taught he could not follow. The magic was real, he picked up so fast that, i have to now occaissionally consult the person who relied on me at the beginning.
There are other good practices Prof used, discussions for feedback, case studies for peer-to-peer work, and the list can keep going on. Looking at the structure, I am positive all forms of instructions could be made real easy.
In case I left out some qualities -- which i am sure i did, on Prof's work, do let me know about them in your comments.
However, if you disagree with me, why not, let me know why i could be wrong.
Well, keep reading, the exams will soon be here with us.
Sunday, March 2, 2008
Instructional Design Theories
What are Theories and Models?
A theory
A theory provides a general explanation for observations made over time.
A theory explains and predicts behavior.
A theory can never be established beyond all doubt.
A theory may be modified.
Theories seldom have to be thrown out completely if thoroughly tested but sometimes a theory may be widely accepted for a long time and later disproved.
What is a model?
A model is a mental picture that helps us understand something we cannot see or experience directly.
Behaviorism, Cognitivism and Constructivism
The Basics
Behaviorism: Based on observable changes in behavior. Behaviorism focuses on a new behavioral pattern being repeated until it becomes automatic.
Cognitivism: Based on the thought process behind the behavior. Changes in behavior are observed, and used as indicators as to what is happening inside the learner's mind.
Constructivism: Based on the premise that we all construct our own perspective of the world, through individual experiences and schema. Constructivism focuses on preparing the learner to problem solve in ambiguous situations.
A theory
A theory provides a general explanation for observations made over time.
A theory explains and predicts behavior.
A theory can never be established beyond all doubt.
A theory may be modified.
Theories seldom have to be thrown out completely if thoroughly tested but sometimes a theory may be widely accepted for a long time and later disproved.
What is a model?
A model is a mental picture that helps us understand something we cannot see or experience directly.
Behaviorism, Cognitivism and Constructivism
The Basics
Behaviorism: Based on observable changes in behavior. Behaviorism focuses on a new behavioral pattern being repeated until it becomes automatic.
Cognitivism: Based on the thought process behind the behavior. Changes in behavior are observed, and used as indicators as to what is happening inside the learner's mind.
Constructivism: Based on the premise that we all construct our own perspective of the world, through individual experiences and schema. Constructivism focuses on preparing the learner to problem solve in ambiguous situations.
Thursday, February 28, 2008
Wondering where I've been.....?
Hmmmm!!
Prof. I am alive and kicking. I have tried hard not to bother you with my challenges. Well since you asked, let me just tell you.
I am still working hard in the background. My absence on blog have been due to the rather tight - if not 'tighter' - schedule i now have. my outfit now runs series of training programmes for research assistants we intend to use for a study into plant medicine. And as it were, the bulk of the job - planning etc has been on me. Coupled with this is the my normal work and the studies/reading i have to do daily. As it were, i close from work at 17:00GMT before settling in for studies for this programme. I relly therefore, much on the internet connectivity in the office for contributions to blogg and the submission of my assignments. As at now, my office has no connectivity and I am actually doing this work from a different Office at 20:24GMT.
To me, this is not an exuse for not beign regular to blog, but as it were, this unfortunately has been my draw-back for this few days. I am terribly sorry for the unfortunate turn of events. I hope to make up for the loss, Prof.
Prof. I am alive and kicking. I have tried hard not to bother you with my challenges. Well since you asked, let me just tell you.
I am still working hard in the background. My absence on blog have been due to the rather tight - if not 'tighter' - schedule i now have. my outfit now runs series of training programmes for research assistants we intend to use for a study into plant medicine. And as it were, the bulk of the job - planning etc has been on me. Coupled with this is the my normal work and the studies/reading i have to do daily. As it were, i close from work at 17:00GMT before settling in for studies for this programme. I relly therefore, much on the internet connectivity in the office for contributions to blogg and the submission of my assignments. As at now, my office has no connectivity and I am actually doing this work from a different Office at 20:24GMT.
To me, this is not an exuse for not beign regular to blog, but as it were, this unfortunately has been my draw-back for this few days. I am terribly sorry for the unfortunate turn of events. I hope to make up for the loss, Prof.
Thursday, February 7, 2008
Instruction design and assessment
Hello my dear friends....
How is life? all is cool at my end here.
We were just looking at the posibility of writing workable objectives around which our instruction could be based. But how do we know we are on course. The current phase - phase 4 i believe provides the answer to this.
This phase looks at placing checks that informs us and learners on their progress with the instruction. This usually comes in the form of assessment.
In all, the designer could use any, or a combination of any of the following kinds of assessment:
formative assessmenst
confirmative assessment
and summative assessment
Formative Assessment
This kind of assessment is given during the instructional process. Its purpose is to provide the instructor and learners information they could use to adjust teaching and leaning, while they are happening. It informs teachers and students about students understanding at a point when timely adjustments can be made to ensure that, students achieve, targeted standards-based learning goals within a set time frame. Formative assessment can easily be taught of as "practice".
Summative Assement
This is given periodically to determine at a particular point in time what students know and do not know. It often comes in the form of end of section/topic test, end of term test, end of year test or any other standard tests taken at the end of studies.
Confirmaive Assessment
It is used to determine the degree to which instructional obejectives are being achieved. The difference between this and the summative assessment are that, in the case of the former, it measures how much has been achieved after the training, whilst the later meausres how much is being achieved.
Comparing this to the formative, formative often looks at the process and possible adjustments that can be made and not neccessarily on the achievement levels.
Now how do we assess?
Formative assessment can be conducted regulaly prior to the completion of instruction in the forms of obeservatrion, online transcript analysis, quizzes, achievemnet tests, surveys, interviews, checklists, peer appraisal, student self-assessment.
Sorry, got to be running off for an assignment, hope to meet you soon here again.
How is life? all is cool at my end here.
We were just looking at the posibility of writing workable objectives around which our instruction could be based. But how do we know we are on course. The current phase - phase 4 i believe provides the answer to this.
This phase looks at placing checks that informs us and learners on their progress with the instruction. This usually comes in the form of assessment.
In all, the designer could use any, or a combination of any of the following kinds of assessment:
formative assessmenst
confirmative assessment
and summative assessment
Formative Assessment
This kind of assessment is given during the instructional process. Its purpose is to provide the instructor and learners information they could use to adjust teaching and leaning, while they are happening. It informs teachers and students about students understanding at a point when timely adjustments can be made to ensure that, students achieve, targeted standards-based learning goals within a set time frame. Formative assessment can easily be taught of as "practice".
Summative Assement
This is given periodically to determine at a particular point in time what students know and do not know. It often comes in the form of end of section/topic test, end of term test, end of year test or any other standard tests taken at the end of studies.
Confirmaive Assessment
It is used to determine the degree to which instructional obejectives are being achieved. The difference between this and the summative assessment are that, in the case of the former, it measures how much has been achieved after the training, whilst the later meausres how much is being achieved.
Comparing this to the formative, formative often looks at the process and possible adjustments that can be made and not neccessarily on the achievement levels.
Now how do we assess?
Formative assessment can be conducted regulaly prior to the completion of instruction in the forms of obeservatrion, online transcript analysis, quizzes, achievemnet tests, surveys, interviews, checklists, peer appraisal, student self-assessment.
Sorry, got to be running off for an assignment, hope to meet you soon here again.
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