Post on 15-Dec-2015
transcript
Things That Should Be Banned From the Elementary Math Class…
1) “Touchpoint Math” 2) The Calendar3) The 100 Chart4) Fact Families5) Base Ten Blocks6) “Gallon” Man7) The “9s” Trick8) Reducing Fractions9) Running Equal Signs10) Silly Mnemonics and “Cutsey Poo”11) Timed Tests for Math Facts12) The Words “Guess” and” Magic”
Clkr.com
1. “Touchpoint” Math
A system where digits are assigned touch points, and sums are figured by counting all the points.
2. The Calendar “Routine”
What day of the week is it? Yesterday? Tomorrow?What month is it?What’s the weather ?What is the date today?Yesterday? Tomorrow?What is the calendar pattern?What comes next?How many days have we been in school?
Visually overwhelming
Assumes tracking ability
Encourages confusing terminology
The 100 chart is not an optimal model of our number system.
90 is a “low” number.
2 is a “high” number.
89 is “closer” to 100 than 92 so its bigger.
3. 100 Chart
4. Fact FamiliesTeacher models:2+3 = 53+2 = 55-2 = 35-3 = 2Students “over-generalize”
and add:
5+2 = 3
5+3 = 2
3-2 = 52–3 = 52-5 = 33-5 = 2
5. Base Ten Blocks
25 + 37 with base ten blocks“OK. 10,20, 21,22,23,24,2510,20,30,31,32,33,34,35,35,37.10,20,30,40,50. 1,2,3,4,5,6,7,8,9,10. That’s 60. 61, 62.”
Ten Frames
25 + 37 solved with ten frames
“So, I see 5 tens, then if I put these two fives together, I have 6 tens
and 2 left over – that’s 62.”
8. Reducing Fractions
“Reducing Fractions”
4/8 2/4 ½ If I reduce 4/8 to ½, it will be less fattening.
9. Running Equal Signs
2 + 6 + 4 = 2 + 10 = 1213-3 = 13-3-1 =10-1 =9
(Examples from CCSS document 1.OA)
10.“My Dear Aunty Sally” mnemonics
Bottoms Bigger? Better Borrow! Order of Operations (?)
Dead Mice Smell Bad Foil FOIL
11. Timed Tests Of course children should learn and be fluent
in math fact retrieval, but timed tests perpetuate the myth that math is about being fast and discourage persistence and promote thoughtlessness and jumping to conclusions.
Timed tests are only effective for students who are goal oriented and who can perform in pressure situations. Timed tests reward few and punish many. They can have a lasting negative effect on student attitudes and should be avoided.
Thank You!
Angela Giglio Andrews Math Intervention Associates Tel:630-378-0995
auntymath@comcast.net Kdg. teacher, Math Intervention Teacher 1-3, Gifted Math Teacher 3-
5, 1st Grade Intervention Math Specialist, Naperville #203, (1984-2005)
Asst. Prof. of Math Education, National Louis University, (2005 – 2011)
Math Recovery Specialist and Trainer, author, lecturer and consultant.