Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

## Histogram

Review the transitions between various graphical representations of data and discuss the advantages of a histogram have over a stem and leaf plot. Also consider the disadvantages of a histogram.

## The House

Learn the importance of setting purposes for reading in order to improve comprehension. Read a passage about a house three times, highlighting the passage with different purposes in mind each time.

## How Long is a Minute?

Try to judge when you think a minute has passed without counting in your head or watching a clock. Use the online stopwatch to record your guesses, get some friends to guess as well and try to come up with reasons for the variations in responses.

## How Many Valentines?

How many valentines are exchanged if each of five friends gives a valentine to each of their other friends? Reflect on your solution, compare it with some others listed, and think about how you would solve a similar problem for more people.

## Hummingbirds

Observe hummingbirds and report their sightings online. Share and review the sightings with other students/classrooms to track hemispheric migratory patterns.

## I Took a Trip on a Train

You took four snapshots of some geometric shapes that you saw on your train trip around a circular track. You dropped the pictures and got them mixed up, and now you must imagine your trip to put them back in order.

## Identify Rock Types

Identify the three major kinds of rocks. Learn some of the key characteristics that help you tell them apart.

## Identify the Tribe

Read the names of three Indian tribes and pick out the tribe that was not considered part of the same area as the others. You have 15 seconds to answer each question.

## Inscribed Angles

Study inscribed angles in semicircles and quarter-circles. What conjectures can you make about the measure of an inscribed angle in semi- or quarter-circles? View non-Flash version.

## Limerick Factory

A limerick is a very funny piece of nonsense verse with its own special pattern of rhyme and rhythm. Use this tool to choose phrases to create your own limerick that follows the pattern.

## Line Plot Representations

Create line plots that have a mean of 5 but different deviations from the mean. Notice that the total deviation above the mean must equal the total deviation below the mean.

## Locate the State

How many states can you identify?. There are 20 questions and you have 30 seconds to answer each one.

Notice how magazines print photos using dots made up of percentages of only three colors and black. Try your hand at using percentages of cyan, magenta and yellow to match the magazine color displayed.

## Making a Line Plot

Practice creating a line plot. Use raisin counts for 17 boxes of raisins to graph the distribution of raisins per box.

## Making a Stem and Leaf Plot

A line plot may not be a useful graph for investigating variation so we must come up with a new representation based on groups of data. Construct a stem and leaf plot from a set of 26 data values.

## Making a Tree Diagram

A tree diagram is a helpful tool for determining theoretical or mathematical probabilities. Toss a coin and watch as branches represent a toss of either head or tails.

## Making Connections in Your Teaching

Connect teaching goals with strategies that enhance learning. Select teaching goals, review the tips provided, then brainstorm and list strategies you would use to help students make connections. Compare your answers to other teachers' answers.

## Measuring Short-Term Recall

Compare your recall of a list of non-words versus a list of words in timed sessions. Consider whether or not there might be bias in your experimental design.

## Measuring Steepness

Does the ratio of height to distance and the angle of elevation change as you move a ladder? Identify any patterns that exist between the height-to-distance ratios and the angles.

## The Median

Determine the median of eleven noodles. Consider what you would or would not be able to tell about the other noodles if you could only see the median noodle.