Curated OER
Morning Math
Mornings can be hard with sluggish mathematicians. Get them thinking using this set of 14 morning math problems. Pass these out or simply project them and have students complete individual problems in their notebooks. Skills include...
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Use Estimation to Compare Numbers
"Take a walk" with this instructional activity and estimate how many birds, ants, turtles, flowers and children getting on a bus that you see. Based on the size of a single set of 10 objects, learners estimate how many are in the whole...
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Leopards: Spotting 10s
Count the spots on 4 pictured leopards and circle groups of 10. Count the extras. Write how many 10s and how many "left overs" in blank spaces. Write the total number in a box. Can a leopard change its spots? Enrich this math tool by...
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Count the Dots: 10 Plus More Makes 11-20
Young math learners count and circle a group of 10 dots. They count on the extras, and write the corresponding number between 11 and 20 in a box. Nine practice problems in all.
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Busy Bees: Counting from 11-19
This worksheet has learners solve five problems in which groups of 10 pictured items are circled and the rest counted. Pupils write the number (under 20). What distinguishes this work from other counting worksheets is that the objects...
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Unidades y Decenas
Using examples of numbers less than one hundred, this presentation in Spanish provides a visual representation of arrays. It would be a great way to help learners understand the concept of tens and ones.