Hop to Subtract: Frog Method

Ben·

Math

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At a Glance

SubjectMath

Original Prompt

frog method for subtraction Find differences using a number line and complements to 10 Establish 36 is the smaller number and that Frog always starts on the smaller number and hops to the larger number to find the difference between the numbers. Put Frog on 36 on the number line. Ask child to come and show a hop to the next 10 (lily pad) which is 40 (rest-stop). Ask How far has Frog hopped? Thirty-six to forty is a hop of four. We know this because we know six add four equals ten. Ask children w...

The Frog Method: Finding the Difference is a learning resource designed to teach students how to find the difference between numbers using a fun and engaging technique involving a 'frog' that hops along a number line. The method emphasizes moving from the smaller number to the larger number by making 'hops' to the nearest 'Friendly 10' before finally reaching the target number. Key vocabulary words such as difference, number line, hop, and complement to 10 are introduced to bolster understanding. The document outlines a structured approach with illustrated examples to illustrate the frog’s movement, incorporating guided practice for students to master the concept. Additionally, there are practice problems and a challenge problem to encourage independence in applying the Frog method, fostering a deeper understanding of subtraction in a visual and interactive manner.