Diamond Dreams Worksheet
Geometry • Field of Dreams
Diamond Dreams Worksheet
Name:
Date:
Field Guide: Big Ideas & Key Terms
Square: 4 equal sides and 4 right angles (\(90^\circ\)).
Perimeter: Distance around the outside edge.
Perpendicular: Lines meeting at a \(90^\circ\) corner.
Area: Total space inside a flat shape.
Parallel: Lines that never cross.
Right Triangle: Has a \(90^\circ\) corner; longest side is across from it.
Part 1: The Voice & Clearing the Cornfield (Beginning)
1. At the start of the movie, what mysterious message does Ray Kinsella hear while walking through his Iowa cornfield?
A. “Build a stadium for the town.”
B. “If you build it, he will come.”
C. “Play ball before winter.”
D. “Sell the farm and move.”
2. Ray plows a rectangular patch of corn that is \(100\text{ ft}\) long and \(80\text{ ft}\) wide. If Ray decides to double the length to \(200\text{ ft}\) (keeping the width \(80\text{ ft}\)), what happens to the total area of corn he has to plow?
A. It stays the same.
B. It doubles (2× larger).
C. It gets cut in half.
D. It triples (3× larger).
100 ft 80 ft Cleared Patch
3. Why does Ray’s brother-in-law Mark think Ray is making a huge mistake by plowing down his cornfield?
Sentence starter: Mark thinks Ray is making a mistake because...
Diamond Dreams Worksheet Page 2 • Building the Diamond
Part 2: Building the Baseball Diamond
4. Ray lays out the infield. Even though it is tilted like a “diamond,” geometers call it a square. Which fact proves it is a square?
A. 4 equal sides and 4 right angles (\(90^\circ\))
B. 3 straight sides and 1 curved corner
C. Brown dirt in the middle of green grass
5. At Home Plate, the foul lines form a \(90^\circ\) angle. What would happen to the fair field if Ray made that corner much smaller (like \(45^\circ\))?
Sentence starter: If the angle were smaller, the fair field would...
Baseball Infield
2nd Base Home 1st 3rd 90 ft 90 ft 90 ft 90 ft
All 4 basepaths = \(90\text{ ft}\)
6. Why is it important for the game that all 4 basepaths are the exact same length (\(90\text{ ft}\))?
Sentence starter: All 4 basepaths must be equal so that...
7. To finish the field, Ray needs white chalk for the outside basepaths and grass seed to cover the whole infield. Which job uses perimeter and which uses area? Explain how you know.
Chalk lines use (Perimeter or Area?) because:
Grass seed uses (Perimeter or Area?) because:
Diamond Dreams Worksheet Page 3 • Play Ball! (Middle of Movie)
Part 3: Shoeless Joe, Throws & Bleachers
8. Once the field is built, who is the famous baseball player who first steps out of the cornfield to play?
A. Babe Ruth
B. Jackie Robinson
C. Shoeless Joe Jackson
D. Lou Gehrig
9. During a game, a catcher at Home Plate throws the ball straight to 2nd Base (dashed path \(c\)), while a runner runs along the bases (Home \(\rightarrow\) 1st \(\rightarrow\) 2nd).
Without calculating, is the straight throw \(c\) shorter than, equal to, or longer than the runner’s path (\(a + b\))? Explain why!
Sentence starter: The straight throw c is... than running a + b because...
Home 1st 2nd a = 90 b = 90 c = ?
10. From the bleachers, Ray’s daughter Karin sees the two foul lines meet at a \(90^\circ\) perpendicular angle and open wide into the outfield. What would happen if the foul lines were parallel instead?
A. They would never meet at Home Plate, and the outfield would stay the same narrow width.
B. They would cross each other at 2nd Base and form a circle.
C. They would open up even wider than a \(90^\circ\) angle.
11. Why must the rows of wooden bleacher benches be parallel to each other instead of intersecting?
Sentence starter: The bleacher rows must be parallel so that...
Diamond Dreams Worksheet Page 4 • The Ending & Reflection
Part 4: Saving the Farm & Having a Catch (Ending)
12. Near the end of the movie, how is Ray’s farm saved from being sold to the bank?
Sentence starter: At the end of the movie, the farm is saved when...
13. In the final scene, who does Ray ask to “have a catch” with on the field, and why is this moment so meaningful to him?
Sentence starter: Ray plays catch with... and this moment is meaningful because...
14. If you were building a baseball field in your own backyard like Ray, what is one geometric idea (like right angles, equal sides, or area) you would check first, and why?
Sentence starter: First, I would check... because...
My Geometry Check-In
Check the box for each big idea you explained today:
I can explain why a baseball diamond is a square with \(90^\circ\) corners.
I can tell the difference between perimeter (edge) and area (inside space).
I can explain how parallel lines, perpendicular lines, and triangle paths work on a field.
