Students discuss making an interval estimate in multiplication problems (i.e., getting a lower and an upper limit for the actual answer using the front-end and rounding-up estimation methods). They then use this method on two problems.
The language of debating is assessed as students provide explanations of emotional argument, limited example, empathy, empty argument, rebuttal, refutation, and irrelevant conclusion.
Students write down an explanation of how the front-end estimation strategy works in addition problems to give information on their understanding of the strategy.
Students discuss making an initial estimate in addition problems using the front-end method followed by compensation to get a more accurate estimate. They then use this method on two addition problems.
For this practical task students investigate some features of craters, complete a table, and explain what they found out. Students then use a diagram showing some craters on the Moon to write as much information as they can about these craters.
Task: Select cards to show how to control the variables of an investigation into the rolling distance of marbles on different surfaces. Assessment focus: controlling variables.
This practical task requires students to first plan how they could find out which liquid flows the best. Then they carry out their plan, record their results, and write a conclusion.
This practical task has two parts. The first part of this practical requires students to observe the effects of different indicators on different substances. Students use these results to identify if some other substances are acid, alkali, or neutral.
This practical task consists of two parts. Students test various substances with hydrochloric acid, iodine solution, and universal indicator, and then complete a table with their observations. The second part requires students to identify four unknown solids using their tests and results from part one.