Adding petsDate: Fri, 18 Nov 94 17:31:28 EST From: Valerie Elacqua Subject: Word problem From: Valerie Elacqua Dr. Math, We're taking your claim that 'no math problem is too big or too small' very seriously. I have three 2nd grade students in my Special Class Math group. Jacob has 2 hermit crabs. Mellisa has 2 bunnies, 2 dogs, 1 gerbil, 1 guinea pig, 5 parakeets, and 1 cat. Laura has 2 fish. (Now the tough part.) How many animals do they have all together? God bless you for your good work!! Could you stand this if we send a word problem 1x a week?? Date: Fri, 18 Nov 1994 17:26:40 -0500 (EST) From: "Michael W. S. Morton" Subject: Re: Word problem Hello from Dr. MATH! I'm one of the math doctors here on call to answer your question. Let's take a look at it and see what we get! > Jacob has 2 hermit crabs. Mellisa has 2 bunnies, 2 dogs, 1 gerbil, > 1 guinea pig, 5 parakeets, and 1 cat. Laura has 2 fish. > > (Now the tough part) How many animals do they have all together? Ok... let's see. First thing I may do is to draw a picture. It helps to get things down that are concrete (that you can actually SEE). So: Melissa: {} {} __ __ .. \ / . . . . . <> OO OO <><> <><> GG PP O O O O O OOO // \\ 2 bunnies 2 dogs 1 gerbil 1 g.pig 5 parakeets 1 cat Jacob: Laura: O' O' >OOO> >OOO> ~~ ~~ 2 hermit crabs 2 fish Ok, so now let's put ALL the drawings together. That will let us see ALL the animals at the same time: {} {} __ __ .. \ / . . . . . <> OO OO <><> <><> GG PP O O O O O OOO // \\ 1 2 3 4 5 6 7 8 9 O' O' >OOO> >OOO> ~~ ~~ We want to know how many animals there are total, so all we have to do now is count them up! I've started putting numbers under each one to count them up. If you keep going, how many animals are there total? Let us know if anything is not understood, or if more help is needed! Send us more questions if you have them. -MORTON, doctor of sorts |
Search the Dr. Math Library: |
[Privacy Policy] [Terms of Use]
Ask Dr. Math^{TM}
© 1994- The Math Forum at NCTM. All rights reserved.
http://mathforum.org/dr.math/