Curated OER
Subtraction - Numbers to 19 ( 3 of 3)
In this subtraction learning exercise, students find the differences in 30 vertical problems which use numbers up to nineteen. They do not regroup as they solve the problems in which they subtract a single digit number from a two digit...
Curated OER
Whole Language Approach in Solving Word Problems
Students explore the concept of word problems. In this word problems lesson, students read a version of the Three Little Pigs. Students discuss what math vocabulary words such as 'in all' and 'many more' meant in the story.
Curated OER
Hoping Backward to Solve Problems
Students use number lines to compare differences. In this math instructional activity, students use a number line to solve problems. Students predict differences and answer puzzles using subtraction.
Curated OER
A thousand seconds
Students use seconds, minutes, and hours. They then discuss the size of a thousand. After that they read time in digital or analogue form.
Curated OER
Subtraction - Numbers to 12
In this subtraction worksheet, 1st graders solve for the differences in 30 vertical problems in which they use numbers up to 12.
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