Interactive video lesson plan for: Teach children subtraction with number rainbows & fact families (grades 1 and 2 math)

Activity overview:

Children can learn and memorize basic subtraction facts with the help of FACT FAMILIES and NUMBER RAINBOWS. You can use these in kindergarten, grade 1 and grade 2 math.

When children have a subtraction problem, such as 7 - 5 = ____, it is easier to solve it using addition: since 5 + 2 = 7, then 7 - 5 = 2.

Two related additions and subtractions then form a fact family.

Number rainbows are a fun tool for children to practice subtraction facts. In the video I have a number rainbow for sums with 14. But you can make it for any sum. For example, to make a number rainbow for sums with 10, write the numbers from 0 to 10, then connect each pair of numbers with an arc if the numbers add to 10. Kids love using lots of different colors to make it pretty! Then you practice subtraction from 10, such as what is 10 - 2? What is 10 - 6? and so on. Children can trace the corresponding arc with their finger to arrive at the answer.

These ideas are also used in my book Math Mammoth Add & Subtract 2-A at http://www.mathmammoth.com/add_subtract_2A.php - it is available both as an instant download (\$3.95) and as a printed book.

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