This task helps students broaden and deepen their understanding of the equals sign and equality.

This three-act math task utilizes videos and questioning to help students explore addition and subtraction within 1000.

The words compose and decompose are used to describe actions that young students learn as they acquire knowledge of small numbers by putting them together and taking them apart. This understanding is a bridge between counting and knowing number combinations. It is how instant recognition of small numbers develops and leads naturally to later understanding of fact families. This task helps them develop an understanding of number combinations.

This problem is designed to help young learners use the symbols plus, minus, multiplied by, divided by and equals to, meaningfully, in ten number statements. Students must drag two operational symbols to empty boxes to make a true statement. This problem also helps learners understand inverse operations and to look for alternate solutions. The Teachers' Notes page offers rationale, suggestions for implementation, discussion questions, ideas for extension and support, printable worksheet.

This three-act math task utilizes videos and questioning to help students explore addition and subtraction within 100.

This problem provides an opportunity to introduce a visual way of representing operations on unknown numbers to help lead students to using a symbolic representation. Learners are asked to think of a number and then through an interactivity are given a sequence of operational instructions to follow which leads all students to the same final number. The Teachers' Notes page offers suggestions for implementation, key discussion questions, ideas for extension and support.

This game provides students practice subtracting from 999. Students should be encouraged to check each players work and provide feedback for mistakes. Remember, mistakes are awesome and they make our brain grow!

This game provides students an opportunity to practice addition, subtraction, multiplication and division as they try to reach 100 on a number chart. The game can be modified by adding more dice or using dice with more than 6 sides. Students will have fun playing as well as making up their own rules for a new game.

This game is a great way to practice and build fluency with the addends 0 Ð 12. As students develop new strategies they will begin to use subtraction. Encourage students to discuss, write about or illustrate their strategies after they have played. You can also ask students to explain why they are choosing their addend and to justify the sum of their addends during play.