Module 3
Module 3 - Multiplication and Division
Module 3 - Multiplication and Division
Lessons 1, 2 and 3 focus on area and perimeter of a rectangle. Earlier in the week, we reviewed basic third grade area and perimeter skills.
Lessons 1, 2 and 3 focus on area and perimeter of a rectangle. Earlier in the week, we reviewed basic third grade area and perimeter skills.
We reviewed the formulas for area and perimeter: Area = Length x width and perimeter = length + width + length + width.
We reviewed the formulas for area and perimeter: Area = Length x width and perimeter = length + width + length + width.
Yesterday and today, with did some problem solving. We learned about a new kind of word problem - multiplicative comparison, which is just a fancy way of saying multiply and then compare.
Yesterday and today, with did some problem solving. We learned about a new kind of word problem - multiplicative comparison, which is just a fancy way of saying multiply and then compare.
Lesson 4 was mostly review. We reviewed what it means to multiply by 10 by using a place value chart and an equation. We extended this knowledge by multiplying by 100 and 1,000 as well.
Lesson 4 was mostly review. We reviewed what it means to multiply by 10 by using a place value chart and an equation. We extended this knowledge by multiplying by 100 and 1,000 as well.
Lesson 5 continued our study of using a place value chart to model multiplication equations. We used arrays to model equations such as: 2 x 3 = 6, 20 x 3 = 60 and 200 x 3 = 600. We also learned how to use a tape diagram to model a one step word problem where multiplication is required.
Lesson 5 continued our study of using a place value chart to model multiplication equations. We used arrays to model equations such as: 2 x 3 = 6, 20 x 3 = 60 and 200 x 3 = 600. We also learned how to use a tape diagram to model a one step word problem where multiplication is required.
Lessons 6-9 focus on multiplying multi digit numbers by a single digit number. First, we learned about representing equations on a place value chart. Next, we learned about the partial product strategy. Today, we learned standard algorithm - the way we learned to multiply when we were in school! Students were presented with the place value chart and the partial product strategy first to understand what it actually means to multiply. After today, it is up to them to choose the strategy that works best for them.
Lessons 6-9 focus on multiplying multi digit numbers by a single digit number. First, we learned about representing equations on a place value chart. Next, we learned about the partial product strategy. Today, we learned standard algorithm - the way we learned to multiply when we were in school! Students were presented with the place value chart and the partial product strategy first to understand what it actually means to multiply. After today, it is up to them to choose the strategy that works best for them.
We have just started our division unit (part 2 of module 3). Today, we discussed important vocabulary, what it actually means to divide and two strategies to model our thinking when faced with a division expression. We can use an array to solve expressions such as 8 divided by 2 and area models to model the expression. Check out our hard work!
We have just started our division unit (part 2 of module 3). Today, we discussed important vocabulary, what it actually means to divide and two strategies to model our thinking when faced with a division expression. We can use an array to solve expressions such as 8 divided by 2 and area models to model the expression. Check out our hard work!
We have been working on distinguishing the difference between factors and multiples. We have been using strategies such as long division and the associative property to help with this work. We also used a special tool to help us understand the difference between prime and composite numbers.
We have been working on distinguishing the difference between factors and multiples. We have been using strategies such as long division and the associative property to help with this work. We also used a special tool to help us understand the difference between prime and composite numbers.
Our go to division strategy is long division / standard algorithm. We have been working hard with practicing four digit and three digit dividends and 1 digit divisors. We're getting pretty quick!
Our go to division strategy is long division / standard algorithm. We have been working hard with practicing four digit and three digit dividends and 1 digit divisors. We're getting pretty quick!
We are currently multiplying 2 digit multiples of 10 by a two digit number. We are reviewing what it means to multiply by using a place value chart. Today, we learned the area model.
We are currently multiplying 2 digit multiples of 10 by a two digit number. We are reviewing what it means to multiply by using a place value chart. Today, we learned the area model.
