# Math facts

Marilyn Burns Math Blog. I’m always on the lookout for math experiences that engage students’ interest and curiosity, encourage them to persevere when solving problems, and are accessible to students with a wide range of abilities.

Solving KenKen puzzles does all three. After getting hooked on solving them myself, I explored their classroom potential, and I’ve been pleased with the results. At first glance, KenKen puzzles look like Suduko puzzles—you fill a grid with numbers. Both are logic puzzles, but KenKen puzzles have the instructional benefit of providing practice with basic facts. Plus Ken Ken puzzles are ideal for differentiating instruction. KenKen Puzzles Come in Different SizesIn KenKen puzzles, the numbers you’re allowed to write to fill the grid depend on the size of the grid.

Getting Started in the ClassroomIn the classroom, I post a puzzle for everyone to see. Outlined one-box cages are freebies, and the Number Clue is the number to write in that box. Try solving the puzzle. Marilyn Burns Math Blog. Multiplication Bingo has long been one of my favorite games, and I recently introduced it to students who have been committing the multiplication facts to memory.

(More about how the students are studying the multiplication facts appears at the end of the blog.) Also, several different versions of the game allow for varying and differentiating the experience, making it a good addition for the class Math Menu. First a Caveat about Understanding vs Memorization Years ago I had a conversation with Paul, a fourth grader. His class was studying multiplication and Paul’s teacher was concerned about him.

She told me that he typically worked very slowly in math and “didn’t get much done.” When I probed Paul’s thinking, I learned that he saw each multiplication fact as a separate piece of information to memorize. Education Week. 22 Fun, Hands-On Ways to Teach Multiplication. Marilyn Burns Math Blog. 3 4 4 assessingbasicfactfluency. The Recovering Traditionalist - Working to help teachers think outside the traditional way of doing, and teaching, mathematics. Fact Fluency Part 1:  4 Types of Addition & Multiplication Facts - The Recovering Traditionalist. As I was looking over my presentation for this week at NCTM and getting sidetracked by checking Tweets about NCSM (which I didn’t get to attend this year), I saw a few tweets about Steven Leinwand and Patsy Kanter’s presentation at NCSM and how well it connects to my presentation for NCTM (tomorrow, 4/14) and it sparked me to write this post about building addition and multiplication fact fluency.

I wrote a book a few years ago that included this addition fact chart and since then I also created one for multiplication: I share these with teachers when I do math professional development trainings, but I’ve never written about them on here. The idea is that the old way of teaching kids to learn isolated facts should be retired and in its place should be the idea that facts are related AND that certain facts come easier than others. Thus there is really only 4 types of facts that students need to “learn” that then help them with all the other facts: 4 Types of Addition Facts: Orange: Doubles.