Missing Addends - Inverse Operations
In this math instructional activity, student find the missing addend in 28 single and double digit addition problems and write the corresponding subtraction problem.
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Choose the Operation: Plus or minus (up to 100)
Investigate the relationship between addition and subtraction as scholars fill in these number sentences, each of which is missing a symbol. Is it a subtraction or addition equation? There are 20 of these to start, all written...
2nd - 4th Math CCSS: Designed
Putting Together Ten
Groups explore sets of 10 items in two varieties (i.e. 3 white buttons and 7 black ones, or 5 bears and 5 bunnies). They brainstorm about their objects, write math sentences to represent what they have, and report their discoveries to...
1st - 2nd English Language Arts CCSS: Adaptable
Find the Missing Inputs for a Function Machine Using a Vertical Table
Given the rule and output values for a function machine, teach your class how to work backward to determine the inputs. The final video of this nine-part series uses tables to organize the inputs, outputs, and rule of a function, and...
5 mins 3rd - 5th Math CCSS: Designed