Showing posts with label numbers. Show all posts
Showing posts with label numbers. Show all posts

Wednesday, February 19, 2014

Big and Small Numbers

Lesson Goal: I can build large numbers out of small numbers.

Choose two numbers. One is really big and the other is pretty small. Tell how many of the small numbers it would take to make the big one.

Red: Pick numbers between 1 and 100

Yellow:  Pick numbers between 1 and 100 000

Green: Pick numbers between 0.01 and 1

Neon Green: Pick numbers between 0.001 and 1 000 000


Choose your question wisely based on making sure that learning is taking place. If you choose two numbers that are too easy for you, you won't be learning anything.


We will take this up, Bansho style, tomorrow.

Meanwhile…
What is something that you learned?
Blade learned that he could use patterns from the answers that he found using a calculator to quickly find answers using different numbers.
Evan learned that he could use division to find an answer in an efficient way.
Finley, Sohail, and others learned how to divide with decimals.
Kailee learned that, with perseverance, she could find an answer in the green level by building up the small number.
I learned that when dividing by decimals, it is like dividing by 10s. It is really a matter of moving your decimal.
Quinn learned that multiplying by base tens moves the decimal to the right and dividing by base tens moves the decimal to the left.

Tuesday, February 18, 2014

Numbers Tell Us How Many or How Much

What Can You Buy?

Big Idea
I can recognize the value of a digit based on where it is placed in a number.
I can read big and small numbers.

What can you buy with...
00000100000. One hundred thousand
  • A really expensive car
  • An very, very, inexpensive house in the Ottawa area
  • Professional NHL grade goalie equipment
  • Someone’s salary could be $100 000 / year
  • A big renovation in your house
  • a big wedding

0000010000.0 Ten thousand
  • A home theatre system (television, speakers, surround sound)
  • horse
  • A car
  • an expensive snowboard package
  • 2 airplane tickets to Europe or China
  • 10 Mac Airs
  • a small wedding

000001000.00 One thousand
  • an engagement ring
  • used car, not in great shape
  • laptops, computers
  • television
  • trampoline
  • gaming system (console, headset, games)
  • dog
  • camera

00000100.000 One hundred
  • one ticket to a concert
  • skateboard
  • pair of shoes
  • skis
  • pants
  • haircut, hairstyle
  • hockey stick
  • good winter coat
  • ukulele
  • video games
  • clarinet
  • Maplelea Girl
  • A week’s worth of food for a family of 3-4 ($200-$300)
  • To fill a tank of gas in a car costs roughly $70
  • A bill at a restaurant for 4 people could cost $100
  • skates

0000010.0000 Ten
  • a Littlest Pet Shop toy
  • iPod case
  • Cheeseburger
  • Buzz Bee Toy
  • Soft cover book
  • Cups of coffee
  • A used board game at Boomerang
  • Album on iTunes
  • water bottle
  • Christmas ornaments
  • nail polish
  • Scout rocket
  • hair brush
  • Menchie’s
  • cheap soccer ball

000001.00000
  • a lot of things at Dollarama
  • a pack of gum
  • one song on iTunes
  • used Rubrics Cube
  • Lollipop
  • a pencil
  • a bottle of water
  • can of Coke
  • Apps

00000.100000 Ten cents, one tenth
  • piece of candy
  • sticker
  • fake tattoo
  • not much of anything

0000.0100000 One cent, one hundredth
  • nothing
  • it doesn’t even exist anymore
  • another penny

Here are the words students summed up the lesson with:

place, value, math, numbers, descriptive, decimal