Comparing: Mitosis / Meiosis and Oogenesis / Spermatogenesis

Command terms are key terms that are used in exam questions to ask questions. The following link takes you to a PowerPoint that helps explain the meaning for each, within the old syllabus - last exam 2015. [Check out the very useful sortable syllabus below the embedded PowerPoint on the website.] I have graded many exam papers that have left me pulling out my hair as I read students demonstrate an understanding of the content tested, BUT due to a lack of understanding of the ...

Getting the depth right

A question that often comes up in face to face workshops is a really good one that is also difficult to answer! The question is usually ‘what depth do I need to go into?’ and it will be with regards to one of the new areas of the course. My initial feeling was to relate the syllabus statement to the learning objectives. For example, in topic 11.3 (measurement and data processing – spectroscopic identification of organic compounds) we see that under ...

Tips from IB Examiners – Those Dreaded Command Terms

Last years subject exam reports highlighted that the students lost lots of marks and so grades from answering long answer questions in Paper 2 and 3 poorly as can be seen from some of their comments below :- " but few gained more than 6 marks due to lack of structure 'explaining' three advantages rather than just describing them." "As usual with extended response questions relating to three distinct issues, candidates who planned their answer carefully and set out the issues gained ...

Objective 3 Command Terms

I think it is worth noting that objective 3 is not tested in paper 1 (either at SL or HL). It does, however, form 50% of the questions for paper 2 and 3 (the other 50% of the questions come from objective 1 & 2). Unsurprisingly, there are many objective 3 command terms: Analyse, comment, compare, construct, deduce, derive, design, determine, discuss, evaluate, explain, predict, show, sketch, solve, suggest. As the command terms apply to all group 4 subjects, some are more likely than ...

Command Terms (2)

The command terms for objective two get a little trickier. They are summarised as: Annotate, apply, calculate, describe, distinguish, estimate, identify and outline. There are some that speak for themselves (eg, calculate) where as other need more of an explanation. For example, 'describe' and 'outline'. If a student is asked to describe something, the examiner is looking for a detailed account, where as if a student is asked to outline someting, the examiner is just looking for a brief summary. This distinction is often made ...

Objective 1 Command Terms

The command terms are the verbs (doing words) associated with the objectives. The command terms will be used in the relevant examination questions. The follwing are the command terms associated with Objective 1: Define Draw Label List Measure State On the whole, I think they are self explanatory, although I think 'define', 'list' and 'state' deserve a little bit more of an explanation. Define - if a student is asked to define something, the examiner will be looking for a precise meaning (eg, ...

The IB Chemistry Objectives (3)

The third set of Chemistry objectives are the hardest. They involve applying Chemical principals and ideas. Here students must construct, analysis and evaluate scientific hypotheses, research questions, predictions, methods, and explanations. The third objectives are: " Construct, analyse and evaluate: hypotheses, research questions and predictions scientific methods and techniques scientific explanations"1 As with objectives 1 & 2 the third objectives are clearly outlined in the syllabus statements in the subject guide. An exam question testing a student on objective 3 will be something along the ...

The IB Chemistry Objectives (2)

Thursdsy's posting introduced you to Objective 1 - what I tend to think is really just recall. Little understanding of Chemistry is needed to understand these objectives. However, as we move into Objective 2 (and 3) things begin to change. "Objective 2 - Apply and Use Scientific facts and concepts Scientific methods and techniques Scientific terminology to communicate effectively Appropriate methods to present scientific information.1" I like the fact that Objective 2 can be thought of as being 'apply and use'. As discussed previously, ...

The IB Chemistry Objectives (1)

Yesterdays post introduced the concept of the command terms. It also briefly mentioned the 'objectives'. The focus of my next few postings will be on the command terms but I thought it made sense to write a bit more about the objectives first. So here we go .... Objective 1 can be found on page 10 of the subject guide. It is listed here: " 1.  Demonstrate an understanding of: a.       scientific facts and concepts b.       scientific methods and techniques c.       scientific methodology d.       methods of presenting scientific data."1 My ...

IB Chemistry Command Terms

What are the command terms? What are the objectives? Where can I find them? What do they mean? These three questions are often asked by IB teachers and I hope to help answer these questions in my next few postings. Firstly, where can I find them? That's the easy part, look in the subject guide. You will find them listed on page 11 and 12. Secondly, the objectives. The objectives are (imaginatively) called Objective 1, Objective 2 and Objective 3. All three objectives have a list of ...