lesson
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Imagine 2 fluffy puppies are playing in the grass, and then 1 more puppy runs over to join them!
How many happy puppies are playing together now?
📊Interactive diagram
How do we write this puppy story using math signs?
Putting Groups Together
When we put two groups together to find how many there are in all, we use addition.
We write a plus sign (+) to join the groups, and an equals sign (=) to show the whole total.
📊Interactive diagram
What happens if we hop over to a pond with green frogs?
Story at the Pond
3 green frogs sit on a log. Then, 2 more frogs leap out of the water to join them.
📊Interactive diagram
To find the total, count all the frogs starting from one: 1, 2, 3, 4, 5 frogs in all!