2

Triangular Numbers: The Building Blocks of Figurate Numbers

Year:
1983
Language:
english
File:
PDF, 528 KB
english, 1983
3

Responses to the How Many Towers? Problem

Year:
2000
Language:
english
File:
PDF, 1.84 MB
english, 2000
5

Sequentially So

Year:
1979
Language:
english
File:
PDF, 322 KB
english, 1979
6

Which Graph Is Which?

Year:
2000
Language:
english
File:
PDF, 1.23 MB
english, 2000
7

The Number of Squares in a Rectangular Array

Year:
1987
Language:
english
File:
PDF, 124 KB
english, 1987
8

How Many Rectangles?

Year:
1997
Language:
english
File:
PDF, 1.08 MB
english, 1997
10

Responses to the Puzzling Prices Problem

Year:
2002
Language:
english
File:
PDF, 4.27 MB
english, 2002
11

Motivating Pythagoras With Pappus

Year:
1979
Language:
english
File:
PDF, 84 KB
english, 1979
12

Applications of Synthetic Division to Graphing Cubic Equations

Year:
1985
Language:
english
File:
PDF, 75 KB
english, 1985
13

How Many Sandwiches?

Year:
1998
Language:
english
File:
PDF, 1.81 MB
english, 1998
14

How Many Towers?

Year:
1999
File:
PDF, 1.59 MB
1999
15

How Many Times Can You Take One-Half?

Year:
1998
Language:
english
File:
PDF, 3.35 MB
english, 1998
16

The World's Largest Math Event: Promoting Mathematical Thinking

Year:
1999
Language:
english
File:
PDF, 2.24 MB
english, 1999
17

Supermarket Math

Year:
2007
Language:
english
File:
PDF, 2.03 MB
english, 2007
18

Responses to the Coloring Tetras with Two Colors Problem

Year:
2002
Language:
english
File:
PDF, 2.24 MB
english, 2002
19

How to Assign Homework to a Middle School Student

Year:
1980
Language:
english
File:
PDF, 3.28 MB
english, 1980
20

Responses to The Talking Club Problem

Year:
2000
Language:
english
File:
PDF, 365 KB
english, 2000
21

Animals and Fences at a Zoo

Year:
1997
Language:
english
File:
PDF, 435 KB
english, 1997
22

FOCUS ISSUE: Children as Mathematicians || What Can You Measure?

Year:
2000
Language:
english
File:
PDF, 1.46 MB
english, 2000
23

A Den of Thieves Investigates Division

Year:
1986
Language:
english
File:
PDF, 794 KB
english, 1986
24

IT'S A FACTOR OF LIFE

Year:
1980
Language:
english
File:
PDF, 439 KB
english, 1980
25

More on triangular numbers

Year:
1986
Language:
english
File:
PDF, 505 KB
english, 1986
26

No Pegs Allowed

Year:
2000
Language:
english
File:
PDF, 1.43 MB
english, 2000
27

Responses to the "Decoration Delight" Problem

Year:
1998
Language:
english
File:
PDF, 1.56 MB
english, 1998
28

Coloring Tetras with Two Colors

Year:
2001
Language:
english
File:
PDF, 1.39 MB
english, 2001
29

FOCUS ISSUE: DATA EXPLORATION || It Could Be!...Well, Maybe?

Year:
1996
Language:
english
File:
PDF, 1.93 MB
english, 1996
30

Wrist Bands

Year:
1998
Language:
english
File:
PDF, 1.01 MB
english, 1998
32

A Divisibility Test for Any Prime

Year:
1986
Language:
english
File:
PDF, 115 KB
english, 1986
33

Responses to the "Counting Squares" Problem

Year:
1999
Language:
english
File:
PDF, 797 KB
english, 1999
34

TRIANGLES, RECTANGLES, AND PARALLELOGRAMS

Year:
1983
Language:
english
File:
PDF, 1.02 MB
english, 1983
36

Code It Be?

Year:
1997
Language:
english
File:
PDF, 370 KB
english, 1997
37

Responses to the "When Will We Reach 1/2?" Problem

Year:
1998
Language:
english
File:
PDF, 2.02 MB
english, 1998
38

When Will We Reach One-Half?

Year:
1997
File:
PDF, 14.96 MB
1997
39

Responses to the What Shapes Can You Make? Problem

Year:
2000
Language:
english
File:
PDF, 3.46 MB
english, 2000
40

Puzzling Prices

Year:
2001
Language:
english
File:
PDF, 1.32 MB
english, 2001
41

Responses to the Tiles and Sides Problem

Year:
2001
Language:
english
File:
PDF, 1.63 MB
english, 2001
42

Double That Dough

Year:
1997
Language:
english
File:
PDF, 923 KB
english, 1997
43

Plentiful Penny Projects to Ponder

Year:
1996
Language:
english
File:
PDF, 1.89 MB
english, 1996
44

Responses to the Marbles Problem

Year:
2000
Language:
english
File:
PDF, 2.35 MB
english, 2000
45

Shuffling a Line

Year:
1998
Language:
english
File:
PDF, 1.61 MB
english, 1998
47

Life with an Exciting Nine-Year-Old

Year:
1982
Language:
english
File:
PDF, 329 KB
english, 1982
48

Responses to the Take Two: Fair or Unfair? Problem

Year:
1999
Language:
english
File:
PDF, 448 KB
english, 1999
49

Mathematics in Our Environment

Year:
1998
Language:
english
File:
PDF, 1.55 MB
english, 1998
50

Readers' Dialogue

Year:
1984
Language:
english
File:
PDF, 509 KB
english, 1984