#fractions

Matt Felton-Koestler with Courtney Koestler

Jan 20, 20201 min read

Math at Casa

Asking math questions while waiting for lunch...

Matt Felton-Koestler

Dec 8, 20175 min read

Decimal Notation versus Meaning

I observed a lesson in a classroom today and while observing I began to wonder what Parker would do with the problem with a little...

Matt Felton-Koestler

Nov 10, 20172 min read

Half of a Half of a ...

M: What'd you do in math today? P: Doubles and halves. M: Really, what numbers did you do half of? P: 1, 2, 3, 4, 5, 6, 7, 8, 9 ,10 M:...

Matt Felton-Koestler

Nov 9, 20171 min read

Fractions with a Side of Pie

Parker wanted pumpkin pie with dinner tonight. After his first slice he asked for more. So I said his payment was to answer: "what...

Matt Felton-Koestler

Sep 25, 20172 min read

Halves and Hundreds

I'm reading The Poisonwood Bible for my book club and I just realized we meet this Sunday, not next Sunday, so I'm freaking out about how...

Matt Felton-Koestler

Sep 20, 20175 min read

Ours is not to reason why…

…just invert and multiply! This post is a bit longer and a bit more didactic than many of my others, but I think it's interesting all the...

Matt Felton-Koestler

Sep 15, 20175 min read

Watching Middle School Number Talks

This post brings together number talks, doing fractions, and ways to work on math with your child without doing drills. Recently,...

Matt Felton-Koestler

Aug 24, 20174 min read

More Water Jug Fractions

After solving the previous problem, I told Parker I was going to give him something more challenging (take a minute and try to solve it...

Matt Felton-Koestler

Aug 24, 20174 min read

Early Fractions

A few weeks ago I wrote the following on Facebook: Last night Parker figured out 3 ÷ 3/4 (in a story problem). This morning Parker said...