The Children's Theatre Ed Pack (2007)

Mathematics - Page Three

Hemlock Turns to Tens

Main Idea:

Adding tens first to make it easier to add mentally

 Outcomes:

N2.2       Understands that numbers can be re-ordered and re-grouped in addition (associative property)

N2.3       Re-orders and regroups factors to mentally add 2 numbers less than 100

 Internet Links:

 http://www.aaamath.com/B/g3 27 x4.htm

Interactive activity adding 2 numbers each less than 100 without regrouping.

Wally Uses his Head

 Main Idea: Using rounding and approximation to solve multiplication problems (guess and check)

 Outcomes:

N2.3      Chooses appropriate factors to fins a given product

WM2.2  Uses guess and check to solve problems

Resources:

Calculator per student

Answers:

1. 65 x 6 = 396

2. 87 x 4 = 348

3. 9 x 49         7 x 63

4. 56 x 9         63 x 8      72 x 7       84 x 6

Break the Number Code

Main Idea: Identifying a rule in ordered pairs of numbers

 Outcomes:

N2.4        Identifies rules to generate ordered pairs of numbers

 Internet Links:

 http://www.standards.nctm.org/document/eexamples/chap4/4.5/#applet

Interactive activity where students use a calculator and number grid online to explore counting patterns to 100

 http://www.funbrain.com/cracker.index.html

Interactivity where simple number sequences are generated (sel;ect the “Easy’ level) and students identify a missing number in the sequence.

 http://www.woodlands-junior.kent.sch.uk/Games/educational/index.html#logic

Interactive logic games where students look for patterns to solve puzzles

 http://www.aaamath.com/B/grade4.htm#topic25

Interactive activity where students find missing numbers in number sequences based on