To understand multiplication as repeated addition and as an array

Slides:



Advertisements
Similar presentations
Repeated Addition Or Adding up.
Advertisements

Multiplication! SOL 3.9: Students will recall multiplication facts through the 9s.
How To Multiply Fractions
Multiplication LI: To be able to write number sentences to describe an array.
Bunch of Pens Task Original Task Extension Ideas Task 1 Task 2 Task 3
Patterns to help you learn your times tables!
Revision on Multiplication concept Our Dear parents: Kindly you are asked to guide your little son/daughter throughout the slide show by pressing the.
Things that Come in Arrays
Progression in Multiplication. Areas addressed Multiple Representations Representing multiplication in Key Stage 1 The commutative law for multiplication.
Math Review for CA. Which number completes the equation? 7 x 9 =? A.49 B.56 C.63 D.70.
Doubles Facts Doubles with Pictures Doubles without Pictures Pictures Only.
Basic Math Terms.
Lesson 5-1 Example Example 1 Draw an array to model the expression 12 ÷ 4. 1.Identify the divisor (the second number). This represents the number.
Jeopardy Number Patterns Geometric Patterns Multiplication Patterns Patterns in Tables Pattern Problems Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200.
Greatest Common Factor
Mathematics Multiplication Story Problems Grassy Lake Elementary School Third Grade Created by: Mrs. Russell.
THE BIG IDEAS OF MULTIPLICATION AND DIVISION. WHAT IS MULTIPLICATION? WHEN DO WE USE MULTIPLICATION?
Module 6 Lesson 6. Objective Decompose arrays into rows and columns, and relate to repeated addition.
Lesson 6.6:.  Sam is organizing her greeting cards. She has 8 red cards and 8 blue cards. She puts the red ones in 2 columns and the blue ones in 2 columns.
Arrays and Equal Groups
Multiplication Take 1 By Miss O.. Meanings for Multiplication Solve to review: = = = What do you notice about solving.
Division of Whole Numbers I
Maths workshop – Multiplication Tuesday 27 th April 2010.
Module 1 Lessons 7 & 8 Demonstrate the COMMUTIVITY of multiplication,
Find the product. 1) 3 x 4 x 5 2) 8 x 4 x 3 3) 2 x 3 x 9 4) 2 x 6 x 4 5) 8 x 2 x 4 6) 7 x 5 x2 5-Minute Check.
By Mrs. PUSHPA PRAKASH, CLASS – IV MATHEMATICS
Multiplication and Division Word Problems Test Review.
Delilah Jaques – Final Project LOGIN HERE Please Enter Your Login Information Username Password StudentNumber.
LET ME COUNT THE WAYS Multiplication. Use What you Know 8 x 6 = ? If you can’t remember the answer to 8 x 6, then use a fact you do know. Such as 8 x.
Multiplication and Division Word Problems. 1.) Understand the problem. Mrs. Bailey is having a birthday party for her daughter Jessica. She bought 5 packs.
Welcome to our Maths Evening. What does calculation mean?....a mathematical determination of the amount or number of something. Manipulating numbers to.
Math Unit 4 Lesson 6 Draw rows and columns to determine the are of a rectangle given an incomplete array.
Review Questions 3 rd OA1, OA2, OA3, OA4, OA6. Which is equal to 5 x 3? a b c d
Module 6 REVIEW. Redraw the objects in an array What are some possibilities?
Progression in written Division
Understanding Multiplication and Division.
Averages If 10 children take a test out of a possible 20 marks, and the mean average score is 12, investigate what their scores could have been. What if.
Today we will be learning: that multiplication can be done in any order the words that are used in multiplication.
DIVISION STRATEGIES MAFS.3.OA.3.7. LESSON OPENING Solve for the variable in each equation: 1)8 × m = 32 2)18 ÷ j = 9 3)p × 7 = 21 4)17 – f = 11.
Progression In Calculations at Lyndhurst First School. Multiplication and Division Mathematical Calculations in School Today. The phases indicate progression.
Matrix Multiplication The Introduction. Look at the matrix sizes.
Find the values of 42 ÷ b = 7 28 ÷ b = 4 Look at your answers and compare the values of b. Choose the answer below that best describes b. A. The value.
Hosted by Mrs. Elliott Choice1Choice 2Choice 3Choice
Objective: I will use models to represent multiplication and division.
Maths curriculum evening. Number addition Year 3 add and subtract numbers mentally: a three-digit number and 1s a three-digit number and 10s a three-digit.
Early Years and Key Stage 1 Maths Parent’s Information Evening Progression of Calculations.
Commutative Property Lesson 3.1:.
© 207 M. Tallman. © 2007 M. Tallman Array- objects or symbols displayed in rows and columns. 3 Rows 4 Columns of 4 of 3.
Multiplication Find the missing value x __ = 32.
Grade 4 – Multiplication Facts Resources: multiplication
Things that Come in Arrays
Week 1.
Multiplication: Groups
Quarter 4 Concept 3 Multiplication.
10 's multiplication.
Area Models A strategy for Multiplication
Understanding repeated addition as an array
Review: 3 2s 2 3s 4 2s 2 4s groups ( ) in each group 3 2s s s s 4+4.
Division Using Arrays.
Multiplication LI: To be able to write number sentences to describe an array.
Multiples and Factors Lesson 2.2.
To understand multiplication as repeated addition and as an array
Exchange.
Multiplication Review
What’s your nationality? Where are you from?
Multiplication and Division Begin to know the 5x tables facts
Presentation transcript:

To understand multiplication as repeated addition and as an array Learning Objective To understand multiplication as repeated addition and as an array

Multiplication times lots of X sets of groups of

Here are 6 counters How many rows are there? 3 How many columns are there? 2

3 rows and 2 columns. 3 x 2 = 6 Could we write a multiplication sentence? 2 + 2 + 2 = 6 Could we write an addition sentence?

Here are 6 counters How many rows are there? 2 How many columns are there? 3

2 rows and 3 columns. 2 x 3 = 6 Could we write a multiplication sentence? 3 + 3 = 6 Could we write an addition sentence?

What do you notice? 2 x 3 = 6 3 x 2 = 6 2 + 2 + 2 = 6 3 + 3 = 6

Here are 10 counters How many rows are there? 5 How many columns are there? 2

5 x 2 = 10 2 + 2 + 2 + 2 + 2 = 10 5 rows and 2 columns Could we write a multiplication sentence? 5 x 2 = 10 2 + 2 + 2 + 2 + 2 = 10 Could we write an addition sentence?

Here are 10 counters How many rows are there? 2 How many columns are there? 5

2 rows and 5 columns. 2 x 5 = 10 Could we write a multiplication sentence? 5 + 5 = 10 Could we write an addition sentence?

What do you notice? 2 x 5 = 10 5 x 2 = 10 2 + 2 + 2 + 2 + 2 = 10 5 + 5 = 10

Here are 12 counters How many rows are there? 6 How many columns are there? 2

Could we write a multiplication sentence? 6 rows and 2 columns 6 x 2 = 12 Could we write a multiplication sentence? Could we write an addition sentence? 2 + 2 + 2 + 2 + 2 + 2 = 12

Here are 12 counters How many rows are there? 2 How many columns are there? 6

2 rows and 6 columns. 2 x 6 = 12 Could we write a multiplication sentence? 6 + 6 = 12 Could we write an addition sentence?

What do you notice? 2 x 6 = 12 6 + 6 = 12 6 x 2 = 12 2 + 2 + 2 + 2 + 2 + 2 = 12

Mrs Masterson bakes cakes. She bakes her four children two cakes each. How many cakes does she bake?

4 x 2 = 8 2 x 4 = 8 2 + 2 + 2 + 2 = 8 4 + 4 = 8

Mrs Patel buys some sweets. She buys her five friends two sweets each. How many sweets does she buy?

5 x 2 = 10 2 x 5 = 10 2 + 2 + 2 + 2 + 2 = 10 5 + 5 = 10

Miss Smets buys some pencils. She buys her seven friends two pencils each. How many pencils does she buy?

7 x 2 = 14 2 x 7 = 14 2 + 2 + 2 + 2 + 2 + 2 + 2 = 14 7 + 7 = 14

To understand multiplication as repeated addition and as an array Learning Objective To understand multiplication as repeated addition and as an array