Uploaded by Josh Krieg

22013 PST- Rafter Layout

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Agricultural Education Blended Learning Lesson
Lesson Title
Standards Addressed
Expected Outcome
Rafter Layout
Ag Structures 2.3.9; Ag Mechanics 5.1.1
Students will be able to demonstrate the ability to use measuring tools to
layout a rafter.
Necessary Resources
Provided
Tape measure
Wood: 12” long piece of 2x4, 2x6…..
Handsaw
Speed Square
Scenario of problem: Give the students the Rise and Run to have them
caculate the pitch of the roof as well as the amount of hangover is required.
Not Provided
Alternative
Resources that
could be used
Caculator
Paint stiring sticks may be used to avoid the time an trouble of ripping &
cutting the wood.
Activity
1. Caculate the roof slope/pitch given in the scenario as well as the length
of the rafter.
2. Using the tape measure and speed square layout the birdsmouth cut
and end cut (according the the amount of hangover given in the
scenario).
References
In person
Digital
Remote,
Non-Digital
Seek advice from an experienced carpenter. Also, refere to Ag Mecahnics
book
Search for videos that explain in detail the steps in laying out a rafter. The
instructor could record a video that he/she can make available for student to
view remotely.
Written instructions along with pictures of steps on how to lay out the rafter.
Assessment
In person
Blended
Remote
Demonstate for instructor or turn in your marked board for evaluaion
Present final product via Zoom for evaluation
Drop off marked board at designated location for evaluation
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