By seeing a visual representation on a grid, students are able to conceptualize an abstract concept. Also, a good understanding of why one must count decimal places is needed and grids are an excellent tool to visualize this idea. 4 is a difficult concept for students to understand because multiplying 0.8 and 0.5 results in what appears to be a "smaller" number. With multiplication, students are under the impression that numbers simply multiply or get bigger. Students understand that 8 x 5 = 40, and by multiplying two numbers together the product is a bigger number. It allows students to visualize how a product is achieved when multiplying decimals. In essence, multiplying decimals is really taking a part of a whole or a part of another part.
DECIMAL MODEL GRIDS HOW TO
The understanding of the word "of" is a useful tool for teaching students how to multiply decimals. Without attempting to actually solve the multiplication sentence, and relying on prior knowledge, most students should be able to understand this example. For example, 0.5 x 2 = 1, this can be understood as 0.5 or 1/2 of 2 is 1. The word "of" is important to understand in this context because it is used when multiplying decimals with a grid. When teaching students how to multiply decimals, I focus on two instructional strategies - the first is to focus on language, in particular the use of the word "of", and second is the use of grids to visually represent a multiplication sentence. Educators earn digital badges that certify knowledge, skill, and experience. Save time lesson planning by exploring our library of educator reviews to over 550,000 open educational resources (OER).Īn all-in-one learning object repository and curriculum management platform that combines Lesson Planet’s library of educator-reviews to open educational resources with district materials and district-licensed publisher content.Ī comprehensive online edtech PD solution for schools and districts. Timely and inspiring teaching ideas that you can apply in your classroom Manage saved and uploaded resources and foldersīrowse educational resources by subject and topic Search reviewed educational resources by keyword, subject, grade, type, and more
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