# Math Puzzle!

Take the digits 5, 4, 3, 2 and 1, in that order. Using those digits and the four arithmetic signs — plus, minus, times and divided by — you can get 1 with the sequence 5 – 4 + 3 – 2 – 1. You can get 2 with the sequence (5 – 4 + 3 – 2) x 1.

The question is … how many numbers from 1 to 40 can you get using the digits 5, 4, 3, 2, and 1 in that order along with the four arithmetic signs?

You can group digits with parentheses, as in the example. There are no tricks to this, though. It’s a straightforward puzzle. How many numbers from 1 to 40 can you get — and, specifically, what number or numbers can you not get?

# Problem of the Week Grades 1-3

```If the letter a= 1 cent, b= 2 cents, c= 3 cents, and so on up to z= 26
cents, how many \$1.00 words can you make

```
```Arrange all the integers from 1 to 9 in such a way that the numbers total
100 exactly.

Here's an example:

12 + 3 + 4 + 5 - 6 - 7 + 89 = 100

You don't have to keep the numbers in order and you can use any

How many combinations can you find?```
` `

# Geometry Riddles

• I am a polygon
• I have no right angles
• All of my angles are obtuse
• I have 8 sides….

I am a _________________

The first grade students have added to their geometry knowledge by studying angles. They have learned that angles are formed when two rays share a common vertex.  The first graders can identify and describe right, acute, obtuse, and straight angles.  Today in class, they used their knowledge to make geometry riddles similar to the one above!

# Polygons

The first grade Math Navigate students have started their Geometry Unit. They have been working on identifying and naming polygons while using new math vocabulary.  They played a few games of LINGO in class to test their knowledge while having fun with their classmates.  This week they will be creating compound shapes, identifying variables, and looking at concave/convex polygons!

# Problem Solving in 1st Grade

The first graders are becoming a great group of problem solvers!  They have learned to approach difficult math tasks by using the different problem solving strategies we have practiced in class!  The Navigate students have learned to draw pictures, use objects, make tables, and find patterns to take on new and challenging math tasks!  