Challenge 1: Bring Home the Bacon116STEMulating Design Challenges in Science, Grades K–2
TEACHER GUIDE
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ENGINEERING DESIGN PROCESS (EDP)
Challenge 1: Bring Home the Bacon
• Facilitate the presentation and testing process.
• Test each prototype using the same process each time.
• Accept and expect failure; failure is an opportunity to learn and improve.
• Ask questions to help students think critically about the successes and failures of their designs.
• Assign each team or student one of the sentence stems below t
o guide reflections on the testing of the bridge. You may choose to have students
record their reflections in their notebooks or to share them orally with the class.
• Allow t
ime for students to ask questions of each other, reflect, and note their observations. Facilitate the use of the rubric.
• Students will be proud of their work. take pictures as each bridge is tested so that students can have a record of their team’s bridge. Display the bridges at school and then draw names to determine which team member will get to take home their team’s bridge. Alternatively, carefully disassemble each bridge and reuse the materials.
EVALUATE
TEST PROCESS:22
grade grade
continued next page
1. Create a class chart to record each team’s budget and the amount of mass each bridge holds.
2. Instruct the Project/Quality Control Manager to place their team’s bridge across the river.
3. Instruct the Project/Quality Control Manager to place the truck loaded with pre-measured objects on the bridge. Note: If the truck will not fit or balance on a bridge, the team may have the opportunity to redesign and test their bridge, as time allows.
4. Instruct the Construction Manager to record and calculate the amount of mass added to the truck as the Project/Quality Control Manager adds mass until the bridge collapses or all of the pre-measured objects and 300 grams of known masses have been added.
5. Keep track of the amount of mass each bridge holds and compare as a group to determine the best bridge design. o Did the bridge fall or collapse? o Did the truck stay on the bridge? o How much mass did the bridge hold?
TEACHER GUIDE
|
ENGINEERING DESIGN PROCESS (EDP)
Challenge 1: Bring Home the Bacon
• Facilitate the presentation and testing process.
• Test each prototype using the same process each time.
• Accept and expect failure; failure is an opportunity to learn and improve.
• Ask questions to help students think critically about the successes and failures of their designs.
• Assign each team or student one of the sentence stems below t
o guide reflections on the testing of the bridge. You may choose to have students
record their reflections in their notebooks or to share them orally with the class.
• Allow t
ime for students to ask questions of each other, reflect, and note their observations. Facilitate the use of the rubric.
• Students will be proud of their work. take pictures as each bridge is tested so that students can have a record of their team’s bridge. Display the bridges at school and then draw names to determine which team member will get to take home their team’s bridge. Alternatively, carefully disassemble each bridge and reuse the materials.
EVALUATE
TEST PROCESS:22
grade grade
continued next page
1. Create a class chart to record each team’s budget and the amount of mass each bridge holds.
2. Instruct the Project/Quality Control Manager to place their team’s bridge across the river.
3. Instruct the Project/Quality Control Manager to place the truck loaded with pre-measured objects on the bridge. Note: If the truck will not fit or balance on a bridge, the team may have the opportunity to redesign and test their bridge, as time allows.
4. Instruct the Construction Manager to record and calculate the amount of mass added to the truck as the Project/Quality Control Manager adds mass until the bridge collapses or all of the pre-measured objects and 300 grams of known masses have been added.
5. Keep track of the amount of mass each bridge holds and compare as a group to determine the best bridge design. o Did the bridge fall or collapse? o Did the truck stay on the bridge? o How much mass did the bridge hold?
