Uncategorized – Page 8 – Mr. J’s Math Class

Thinking about decimal multiplication

Our notes below compared how to add and multiply decimals. In class we noticed how these skills are similar and different and wondered why.

Multiplying decimals with the standard algorithm

Today we explored the steps for multiplying decimals using the standard algorithm. We also compared it to the partial products method.

Comparing different ways to multiply decimals

Our notes today show two different methods of multiplying decimals. First we estimated our product and represented the estimate in an area model. Next we solved for our product using the standard algorithm and the partial products methods.

Using the standard algorithm to multiply decimals

Our lesson today looked at how to use the standard algorithm (or shortcut) to multiply decimals. Here are the steps!

Representing decimals multiplication

Today we continued with looking at different ways of representing decimal multiplication in diagrams and concrete models. Below is a copy of our notes and exit ticket.

Multiplying and representing decimals

Today’s lesson explored how to represent and solve multiplication of decimals in different ways.

Multiplying decimals: new unit introduction

Today we started on Unit 8 in which we learn how to represent and solve multiplication of decimals up to the hundredths place. The pictures below show our introductory notes and our objectives.

Teach Your Family Friday: How to read a problem

Happy Friday! Today’s Teach Your Family Friday is about how to decode a word problem. Show your family or friend the steps below. Explain how this skill helps!

Login for Kahn Academy and Prodigy

Kahn Academy Classes: Johnston: https://www.khanacademy.org/join/E67AC2M5 Rideaux: https://www.khanacademy.org/join/4RTQ34R2 Santos: https://www.khanacademy.org/join/RJ7UK3Z9 Prodigy Classes: Go to www.prodigygame.com, select login with Google. Use your usual school login email and password: Once in the game, enter these codes: Johnston: 45C17F9 Rideaux: 6167F92 Santos: A06D63C

Practice questions and solutions

Good afternoon! Here is a PDF of the workings and solutions to the practice questions we’ve worked on in class. I’m posting them so that you can review and compare where you may have questions or want to check your work. This will also help to show the strategies we practiced in class.