Coding Express Set

# Math - Distance

In this lesson students will understand how to measure distance, be able to compare distances and be able to do simple math.

30-45 min.
PreK-K

## Prepare

• Review this lesson plan and choose what you need from the Teacher Support box.

• If necessary, pre-teach these related vocabulary words: measure, distance, step, compare, vehicles, reverse.

• Consider the abilities and backgrounds of all your students and decide when and how to introduce and differentiate lesson content, activities, or concepts.

• To use this lesson without the Coding Express app, see the unplugged version.

## Engage

• Talk to the students about distance.

• How did you get to school today?
• Why do you think some people walk or bike while others take the bus?
• Would you like to play a game?
• Choose two or three spots around the classroom to be “train stops.”

• Name the stops.

• Ask the students to walk from one stop to the next and count how many steps they’ve walked.

• Compare the number of steps between each of the stops.

• Talk about which distance is longer and why.

## Explore

• Have the students pick building cards and work together to build the models shown (three models are suggested).

• Ask them to build a double-ended track and place their models alongside it.

• Now experiment with the app.

• Let’s start the train!

• Ask the students how many numbers they’ve seen in the app. Can they count from the smallest number to the biggest?

• Press each number and see how far the train moves.

• Have the students pick the number(s) that will help the train reach each stop

Tip: Make sure the engine is connected to the app before experimenting with the different numbers.

## Explain

• Talk to the students about distance.

• Why do people use different vehicles like bikes, cars, and airplanes?
• When do people take airplanes or buses?
• When do they walk or bike?

## Elaborate

• Encourage the students to build more stops and decide the distance between them.

• Which distance is the shortest/longest between the stops and how long is it?
• Can you describe the path of the train’s journey? (e.g., it started from…, stopped or passed…, and ended at…)

## Evaluate

• Ask guiding questions to elicit students’ thinking and their decisions while ideating, building and programming.

Observation Checklist

• Review the learning objectives and educational standards addressed in this lesson (Teacher Support box).

• Share specific student responses and behaviors at different levels of mastery.

• Use the following checklist to observe students’ progress:

• Students can create and describe a sequence of events.
• Students can predict the expected outcome of the sequence of events, with prompting.
• Students can compare two distances using descriptive words like longest, shortest.

## More Ideas

• Use this lesson’s format to work with Longer Distances and explore more numbers with your kindergartners!

## Teacher Support

Students will:

• Understand how to measure distance
• Be able to compare distances
• Be able to do simple math

For up to four students

• Coding Express set (45025)

• Coding Express App

• CSTA 1A-AP-12 Develop plans that describe a program’s sequence of events, goals, and expected outcomes.

Extension

• CCSS.MATH.CONTENT.K.MD.A.2 Directly compare two objects with a measurable attribute in common, to see which object has "more of"/"less of" the attribute, and describe the difference. For example, directly compare the heights of two children and describe one child as taller/shorter.

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