This practical task requires students to lift a 1 kg weight and then estimate whether a range of everyday objects weigh less than, about the same as, or more than 1 kilogram.
From diagrams of four original and enlarged drawings to be used for Christmas wrapping paper, students identify the scale factor used and find a missing length on either the enlarged picture or the original picture.
Students are provided with a diagram of a thermometer and they answer questions on its use, how it works, and then read the temperatures from four thermometers.
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.
This practical task requires students to construct a one metre newspaper roll, use it to estimate the dimensions of a room, then calculate the volume of that room.
Task: Students read a pH scale to determine how it shows the increasing strength of an acid and a base solution and decide from different pH products what the effect would be on an acidic soil. Assessment focus: interpreting a pH scale.