## Redwood Range

Calculating the range of Sequoia sempervirens in California Using the following maps, estimate the range of redwoods in all the California counties in which the species is found.

## Place Value Pictures

Questions: What is the difference between place and value? How can we determine how many hundreds, tens, and ones are in a number? About the activity: Place Value Pictures provides an engaging way for students to work with  hundreds, tens, and ones blocks in a way that combines math and art. it creates an interactive […]

## Lumber Yard Mathematics

There is a lot of lumber in Humboldt County — here are some images to ramp up number talks around some real world math.

## Plane Flight Mathematics

On a Cessna flight from an airport in Humboldt County I was inspired to develop a plane flight mathematics lesson — how far can a Cessna fly?

## Skip Counting

In this activity, we will use skip counting to estimate the number of fires Mr. Kauffmann is prepared to have for the winter.

## Amusement Ride Mathematics

The Sky Trail is a gondola ride through the redwood forests in Del Norte County, near Redwood National and State parks. As we waited in line to board, we were pondering Amusement Ride Mathematics. A few facts for consideration: Passengers are picked up every 2 minutes Each passenger pays, on average, \$10 for the ride […]

## Binary Number Basics

Duration: 55 Minutes Goal: To better understanding what the binary system is, how it is used, and how to use it. Objectives: Students will be able to identify binary numbers and what they represent. Students will be able to write out and decode binary numbers. Binary Numbers Printable Binary Number Table Binary Number Trick How […]

## Quantitative Reasoning Activity

Experiencing the mathematical practices as adult learners A brief activity to rekindle our own math practices Mathematical Task: Interpret graphical information 5 minutes: Individual (think) What is the topic of the “Mistake on a plane” graph? What to the horizontal and vertical axis represent? What are some observations  or inferences you can make based on […]

## Math Loco-motor Skills

Math and loco-motor skills can be integrated into daily physical education using the ideas shared by Chris Hopper from Humboldt State University. The Activity Make Predictions! How many steps will you take as you walk 10, 25, and 50 yards? Do It! Each student walks various lengths of the field and records their data. DOWNLOAD […]

## How well can you perplex us?

Here are a few ways to bring open ended questions to your classroom and perplex students and teachers alike with real world maths.