4th Grade Math Unit3.1 Comparing with Multiplication (Times as Many Means Equal Groups)

Today's lesson is comparing with multiplication, where times as many means equal groups drawn as bars. A bag of four counters three times as many is three equal bags, so four plus four plus four is twelve Six times as many rabbits as seven doves is six groups of seven, forty-two rabbits A giraffe of eighteen feet is twelve feet taller than a six-foot baby and three times as tall Mia has five dollars and Ben twenty, so Ben has four times as much but fifteen dollars more Cover the small number in four times six equals twenty-four and divide, since twenty-four by six is four A thirty-six dollar game costs four times as much as a book, so the book is nine dollars Pupils finish able to separate how much more from how many times as many and to find whichever number is hidden in a comparison. CHAPTERS 0:00 The Magician's Hat Mystery 0:43 Idea 1: Times as many means equal groups 1:18 Idea 2: How much more vs how many times as tall 2:31 Idea 3: Three numbers, cover one and solve 3:33 Worked Examples 6:37 Times-Up Challenge 8:43 The Hat Opens: 42 Rabbits 9:21 Up Next: Practice 9:43 Times Master!