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• TLF-IDA003579

Use this task to assess students’ knowledge and understanding of properties of shapes, and language they use when describing common features.

• TLF-IDA003553

Use this diagnostic task in the style of a one-on-one interview to assess a student's understanding and skills in comparing length.

• TLF-IDA003571

Use this diagnostic task to assess if students know about capacity and comparing containers based on how much they hold.

• TLF-IDA003580

Refer to the diagnostic task for a guide on how to conduct a one-on-one interview where the student is asked to measure length by choosing an informal unit.

• TLF-IDR1783

This is a rectangular wooden abacus (15.5 cm x 29 cm x 2.5 cm), made in about 1900. It has two decks (divided horizontally by the beam) of 13 rods inserted vertically in the frame. On the bottom deck there are five wooden beads on each rod and on the top deck there are two beads on each rod. The abacus has a removable wooden ...