Lesson 8: Let’s apply mental strategies to subtract
Students will apply their mental subtraction skills to play a game called Ducks in a Row.
Lesson 7: Let’s use jump/split strategy to subtract mentally
Students will explore how they could use their knowledge of jump and split strategy addition and investigate how it can be used to subtract. They will refine and apply the strategies to plan a day at a waterpark.
Lesson 6: Let’s bridge down to the next ten to subtract
This lesson uses the skills acquired in the bridging to the nearest 10 addition lessons and applies it to subtraction. Students will play a game, called Stick or Twist, to practise subtracting down to the nearest 10.
Lesson 5: Let’s explore jump and split strategy
Jump and split are mental strategies used to manipulate and solve addition problems effectively. Students will break down the smaller number into smaller chunks, then add each chunk to the larger number. They will choose chores for animals to complete, so they can accomplish their goal.
Lesson 4: Let’s count on and find number complements to 100
Students will use their number bond knowledge, and addition and subtraction knowledge, to explore number complements to 100. Number complements are numbers that go together to make 10, 100, 200, 1,000. Students will look for the complements that are hidden in pictures.
Lesson 3: Let’s bridge through to the next ten
Bridging to the next ten strategy involves adding a number in parts to another number to get to the next multiple of ten. Students will utilize bridging to the next ten to help develop their mental math skills. Students will play Stick or Twist to practice this strategy.
Lesson 2: Let’s apply number bond skills to add mentally
Students will use their number bond knowledge along with other strategies, such as doubles and near doubles, to find ‘number buddies’, which are numbers that are easier to add together than others. Students will play a game called Number Buddies.
Lesson 1: Let’s explore near doubles and number flexibility
Students will manipulate doubles and ‘near doubles’ (numbers that are very close to each other) to develop their addition skills and gain more of an understanding of how numbers are flexible. Students will practice adding doubles and near doubles with an activity that involves matching odd socks.
Lesson 15: Let’s show what we know!
Students will show their knowledge of all the key ideas from this place value unit. Please note, you can either complete an onscreen assessment or a printed version of the assessment.
Lesson 14: Let’s apply place value skills
Students will consolidate their place value knowledge and use critical thinking skills to solve a series of puzzles. They will apply their knowledge of expanding, rounding, regrouping, comparing and writing whole numbers and decimals.