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under 20 and under 100Visual arrays are provided to help children see the mathematical relationshipsTeaches fast
Engineered to deliver reliable performance in any laboratory setting
This 36 piece set contains 24 squares (in 2 designs) and 12 equilateral triangles in 4 colours
Topics include: numbers
Pupils Elapsed Time Ruler , pack of 6 199990 under 20 and under 100VisualThese linear 12 24 hour analogue digital elapsed time rulers enable students to calculate elapsed time in a simpler way by marking start and finish time using dry erase markers, therefore calculating start and finish time. Compare the difference and relationship between analogue and digital time using the analogue (top) or digital (bottom) section of the rule. Ends clip together to show continuous time. Made from durable plastic. Size: 50 x 4. 5cm
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