Hidden shapes

This is an excellent activity for developing visual memory and the use of geometric language. The level of difficulty of the task can be varied by altering the number of blocks used to make the figure.

Discuss the appropriate names for the pattern blocks and their properties.

Broaden students’ understanding of these shapes by asking them to identify other figures.

For example:

After a few attempts at this activity, get students to list the directional words that have been commonly used. This vocabulary might include words such as above, below, next to, left, right, on top, symmetrical, and turn.

Focus on the most efficient use of language by showing the students a figure made from blocks and getting them to write instructions for building it. Refine the instructions collectively to create a model for future games.

Many students will need you to interpret the example of instructional language given on page 18.

Getting students to act out a set of instructions involving quarter- and half-turns, both clockwise and anticlockwise, will be beneficial. A marching team’s marching plan is a useful example of directional instructions. Relate quarter- and half-turns to the movement of the minute hand of an analogue clock and demonstrate that movement for students by moving the hand using the knob at the back of the clock. Students can copy the clock hand movement with their own body turns.

More advanced students might be encouraged to use compass directions, especially if the activity is extended outside the classroom. Maps of the school can be used for outside “treasure hunts”.

Drawing a coordinate system on the plan to provide an indicator of distance can also help.

Activity 1

• Answers will vary.

Activity 2

• Answers will vary.