Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.
Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.
Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.
Interpret products of whole numbers, e.g., interpret 5 × 7 as the total number of objects in 5 groups of 7 objects each. For example, describe a context in which a total number of objects can be expressed as 5 × 7.
Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.1
Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations. For example, observe that 4 times a number is always even, and explain why 4 times a number can be decomposed into two equal addends.
When you multiply, you put equal groups together to find the total. In this math movie, Annie and Moby show how to solve multiplication number sentences by using repeated addition, or adding the same number over and over again. Learn how to use different strategies like drawing pictures, skip-counting, and using a hundred chart to solve multiplication sentences.
In this lesson plan which is adaptable for grades 2-7, students will explore authentic contexts for measurement skills. Students will use a free online math game to take on the role of a carpenter who needs to cut planks of wood. Younger students will practice equal grouping in early levels of the game, while older students practice measurement, factoring, division, and algebra as they cut slabs of wood in the advanced game levels. Students then work collaboratively to create math word problems that include real world measurement scenarios. This lesson plan is aligned to Common Core State Standards. See more »
In this lesson plan which is adaptable for grades 1-5, students use BrainPOP resources (including a free online interactive game) to practice combining numbers to create target amounts. Students will apply a variety of mental math strategies as they add during online game play, as well as in a hands-on addition game they create with a partner. This lesson plan is aligned to Common Core State Standards. See more »
In this lesson plan which is adaptable for grades 1-5, students will use an online math game to practice creating number combinations (such as whole numbers which add up to 10, or decimals which add up to 1.) Students then create their own version of the game using hands-on materials. This lesson plan is aligned to Common Core State Standards. See more »
In this lesson plan which is adaptable for grades 2-5, students will use BrainPOP Jr. and BrainPOP resources (including an online math game) to practice multiplying whole numbers and/or decimals. Students will identify patterns within a multiplication table and create their own multiplication tables with unique patterns. This lesson plan is aligned to Common Core State Standards. See more »
In this multi-day lesson plan for grade K through 3, students use a BrainPOP Jr. movie, graphic organizer, and flip chart to deepen their understanding of basic addition and mathematical thinking skills. This lesson plan is aligned to Common Core State Standards. See more »
This page contains information to support educators and families in teaching K-3 students about repeated addition. The information is designed to complement the BrainPOP Jr. movie Repeated Addition. It explains the type of content covered in the movie, provides ideas for how teachers and parents can develop related understandings, and suggests how other BrainPOP Jr. resources can be used to scaffold and extend student learning. See more »
In this set of activities adaptable for grades K-3, parents and educators will find ideas for teaching about repeated addition as a strategy for multiplication. These activities are designed to complement the BrainPOP Jr. Repeated Addition topic page, which includes a movie, quizzes, online games, printable activities, and more. See more »