For this entire lesson, Marty should be on the ground, not on a table. In preparation, all Marty could be turned on and in 'unplugged' mode before the lesson starts. Unplugged mode is explained, here; alternatively, Marty could be turned on during the 'Warm up' part of the lesson as it is shown in the presentation.

Warm Up

Read to learners the learning objectives and success criteria from slides 2 and 3 of the presentation.

Warm up with a game of musical statues or musical bumps - learners dance when the music is playing and freeze or sit down when the music stops. There is a link to music on slide 4 of the presentation; there are automatic stops in the music track.

Slide 5 will introduce Marty, with details about the device and how to switch them on.

Get Learning

Show the presentation (slides 6) to display each of the 5 color cards. Once you have Marty in unplugged mode (click here to see about unplugged mode), either show Marty reacting to the cards on the presentation, from slides 7 to 11, or place Marty on each of the colors in whichever order you want. If you want to show Marty in real life responding to the cards, you do not need to show slides 7 to 11.

Alternatively, you could show each of the colors to the learners in your class and ask them about what they think this card might get Marty to do; we recommend starting with green and red for the traffic lights, to give learners a clue that these colors correspond to directions.

To get learners to better appreciate how Marty moves with the color cards, ask learners to pretend that they are a Marty: show a color card and have volunteers, or the whole class take 3 or 4 steps in that direction.

Time For Practice

The practice for this lesson centers on using the correct color card at the correct time:

• In what direction do you need Marty to travel?
• In what order do you need Marty to make the movements?

Depending on the ability of your learners, it may be best to focus only on the green forward and red stop cards. For this, you need a start and stop location and a bit of time to have learners practicing 'lining up' Marty so they will travel in the correct direction. Slide 12 from the presentation shows two mistakes were made when instructing Marty to move from a start position to an end. Have learners try and identify what the person did wrong. If you need to show it, slide 13 has a correct demonstration of using the color cards.

While learners are waiting for a turn of using Marty, ask them to have a person in their group pretend to be Marty.

• The group needs to decide on a starting and a stopping spot and place something red at the stopping spot.
• The group members need to make sure that Marty is pointing in the right direction.
• One person in the group will need to put some green under Marty's foot to instruct them to go.
• Marty will need to focus on walking in a straight line. If they reach the red, they could do a small dance.
• Repeat with other group members pretending to be Marty while waiting a turn of the real Marty.
• If there are learners who feel confident or adventurous, challenge them to use other colors to walk around something and reach the red stopping spot.

As each group of learners manage to reach the goal, celebrate with them. "You just created a program to tell Marty to do something. You are at the very start of a journey to create instructions for computers and robots!!"

Cool Down

Remind learners of the amazing work that they accomplished, "You were able to instruct a robot to move from a starting point to a finishing point! That is just amazing! I wonder what else we will get up to with Marty?"

Remind learners of the goals for the lesson, "Move a robot with color cards," and, "Get a robot to walk forward and stop."

Ask learners if they think they did well with the lesson using a familiar formative assessment strategy: thumbs up for good, thumbs to the side for OK, thumbs down for not so good; a green, yellow or red card, indicating their thoughts; a one to one chat about the learning; whole class feedback using a PMI (plus, minus, interesting) approach; or some other strategy with which the learners are familiar.

Carry out any end of lesson routines.

Log off devices and clear everything away.