This cluster includes the following access points.
Vetted resources educators can use to teach the concepts and skills in this topic.
| Name |
Description |
| Determine the Unknown in an Equation: | Students will apply their understanding of the equal sign as a relational symbol to determine the unknown number in equations relating four whole numbers. Students are encouraged to explore a variety of strategies for equations with addition or subtraction on each side of the equal sign. |
| The Mystery Of The Missing Number: | In this lesson, students will find the “mystery” (missing) number in an addition or subtraction equation relating 4 whole numbers with the unknown in any position. Students will complete an activity in partners, using hint cards as needed. |
| Into the Unknown: | In this lesson, the teacher will introduce using base ten blocks to solve addition equations relating 4 whole numbers with the unknown in any position. Students are given the opportunity to practice with a partner. The students will be engaged with manipulatives, teacher questioning, and partner practice as they determine the unknown number. |
| Are Your Numbers Equal to My Numbers?: | This is a lesson that reinforces the meaning of the equal sign while students determine the unknown whole number in an addition equation. |
| Is it "Most Magically Magical"?: | This lesson is intended to be a cooperative inquiry-based activity used close to the end of second grade. The students will be actively engaged in adding and subtracting numbers within 100 while having fun completing Magic Squares. |
Vetted resources students can use to learn the concepts and skills in this topic.
