TODAY'S OBECTIVES

• Draw cuboids with parallel lines
• Bring scissors to class
• Draw nets to successfully construct cuboids of assigned dimensions
• "See" faces on complex cuboid shapes (to aid in determining surface area)

CLASS LESSON

Science terms & using limited components to build variety of shapes (developing spatial skills)

1. QUIZ-student draw shape from projected image on screen in class.
2. Student show Mr. Reimer the shapes (D-J) which they made in previous homework (this is assigned minor summative grade to induce students to complete this work).
3. Students draw shapes K, L, M, N (from images projected on screen in classroom) from at least two perspectives.  A new perspective must see faces other than only the original faces or it is not considered a "new" perspective.  For example, if you can see the front, top and right face of a cube, a different perspective would show the front, bottom and left faces.
4. Complete building begun and not completed last semester.
5. Teacher define "face".  Demonstrate on board how to identify faces of complex cuboid forms.  Practice identifying faces of shapes D-J.  Make list of "faces" which are unique shapes (exercise in visualizing and 3D mental manipulation)
6. Next class we will have SUMMATIVE QUIZ on identifying faces of unique cuboid shapes.  Every student should have scissors and ruler (at least 10 cm long and graded in mm;) having tools is worth points on this quiz!

ASSIGNMENT

A.  Student draw further cuboid forms.  Each drawing must be dissimilar.  For example, making a cuboid out of 5 cubes which is 5 cubes long is very similar to shape we built of 4 cubes in a staight line.  Those two shapes are NOT dissimilar.

1. Draw two shapes made of 5 cubes which are unique and dissimilar to each other and to what we have already made and seen.
2. Draw one shape made of 6 cubes which is unique and dissimilar to what we have already made and seen.
3. Draw one shape made of 7 cubes which is unique and dissimilar to what we have already made and seen.

B.  Build shapes K, L, M , N using 1 cm graph paper.