WEEK TWO – Activity Two – Toblerone Fractions


1. Warm Up

Put this puzzle up as a warm up. It is a little easier than last week’s puzzles, and this is a good time to build confidence with this type of logic problem. Have students try this one alone.

Sign #2 cannot be true, since it then declares itself false. Therefore, sign 2 is true …

… read more … >>f WEEK TWO act 3

WEEK TWO – Activity One – Capture the Fraction Circle

1. WARM UP –  The Fraction Template

Project the fraction template below.  Click for pdf:  fraction template

Photocopy it for students if at all possible. Our 5th graders keep one in their binder for weeks.

Ask simply : “WHAT DO YOU SEE? You can’t give a wrong answer – whatever you see is true.” Early answers might refer to colors and numbers. Accept all as true. Gradually ….

… read more… e WEEK ONE act 3

WEEK ONE – Activity Two – The Lady and the Tiger


(~60 minutes)

A puzzle has the ability to pull children into the subject of math. A story even more so. Let’s combine the two.

1. The Story

We start this activity by reading a condensed version of Frank Stockton’s classic tale “The Lady or the Tiger”.  One source online:


After the story, we discuss the word “Ambiguity”, since the children are fascinated and frustrated by the fact that the author does not give an answer to the question “Did …

……read more…  c WEEK ONE act 2

WEEK ONE – Activity One – A Logic Problem

Activities in the first couple weeks need to draw the children in. Even (especially!) those who think they dislike math. We avoid computation, instead looking for activities that involve ambiguity, head-scratching patterns, puzzles and stories.



A puzzle has the ability to pull children into the subject of math. It appeals to a wide range of learners and can generate small feelings of success….

…read more >>a WEEK ONE act 1



Our Goals in Teaching Math


1. Concrete  −> Pictorial −> Abstract. This is perhaps Singapore’s greatest contribution to math pedagogy. Based on research that goes back over a hundred years (Dewey, Bruner, Piaget, Vygotsky, Montessori, and others), Singapore validated the strength of this approach by using it to achieve top scores internationally.  Continue reading Our Goals in Teaching Math