Even and odd
Identify even and odd numbers
Write even or odd beside twenty different numbers. Choose a 0–20 starter range or practice larger values up to 200.
Preview and downloadEven and odd practice
Color even and odd numbers
Sort sixteen numbered circles by coloring even numbers blue and odd numbers amber. Choose a small starting range or extend the numbers to 100.
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Read each number. Color its circle blue if the number is even, or amber if it is odd. Use counters to check unfamiliar numbers.
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Choose a useful starting range
Start can be any whole number from 0 to 20; end can be any whole number from 1 to 100 and must be greater than start. Both endpoints are included. Small ranges repeat in shuffled cycles to fill all sixteen circles. Even is blue and odd is amber; the key also uses parity words.
Learning objective
What this activity builds
Explain whether a quantity can be arranged in pairs without anything left over.
Worked example
Should the circle containing 7 be blue or amber?
Amber: 7 is odd.
Seven counters make three pairs with one counter left over. Six counters would make three complete pairs, so 6 is even.
Teaching notes
Make the practice count
- Begin with the 0–10 preset and pair real objects before coloring. The ready-made sheet uses 0–21; custom endpoints are inclusive.
- Zero is even: there are no objects left over when zero objects are arranged in pairs. Include zero in the discussion rather than treating it as an exception.
- A short range can repeat numbers because every page has sixteen circles. Every value in a shuffled range is used before the next cycle begins.
- Ask the learner to say or write even or odd as well as choosing a color. The separate key includes parity words, so color is never the only answer cue.
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