Build: A Loop Program
Intro to Python Programming Grades 9–12 2-day lesson 23 deliverables Guide students through a Python build that uses a loop to track practice or keep score. Students plan repeated steps and decisions in plain words, then write expected results for their test inputs. They build their program, compare its results with a partner's checks and fix mistakes before explaining how the loop works.
● Instant download · Lifetime access · Editable & print-ready
Print + digitalPDF, PowerPoint, Word & Google
Answer keysA key for every page
Built-in assessmentExit tickets + project rubric
45-minute daysEvery day planned and timed
Short coding levels practice this lesson in CodeGrove, our code lab that runs in the browser. Students write the program, run it and check it, with no account and nothing to install. Use them with the lesson or as practice later.
See the levelsWhat does this lesson cover?
Students may start coding a loop without deciding what repeats, changes or ends it. This build makes those choices part of the plan and checks them against expected results.
The lab on Day 1 has an online version that uses CodeGrove, our in-browser code lab, in the Practice Tracker or Times Table Quiz level. It practices building a loop program that asks for an answer on each pass, keeps a running total or a score with +=, and prints the results after the loop. Students pick one of two builds, Practice Tracker or Times Table Quiz. They plan their program, build it on the code sheet or in CodeGrove and test it with a partner. On the last day of the build, paper students hand in the code sheet, and online students send the turn-in Form with their CodeGrove link. Every online version comes with a paper version, so no internet is needed. CodeGrove is free, with no accounts or sign-ins.
Build Your Loop Program
Students pick Practice Tracker or Times Table Quiz, plan the loop and its decision in plain words, plan three tests and what each should print, and start building on paper or in CodeGrove.
Everything that's included
00 Start Here
- READ FIRST: every file in the lesson and when you use it
- Teacher Guide and Pacing: the plan for each day, what to print and how to grade
- Skills map: which standards each day teaches
01 Present
- One editable PowerPoint deck for both days, 14 slides, with speaker notes
- Slide script: the speaker notes, printed
- Bell ringers: a short warm-up for each day
02 Student Handouts
- Guided notes: one packet for both days, in PDF and editable Word. Students fill in the blanks during the slides, with the word bank on the page
- Vocab slip: the lesson's words and what they mean, on one page
03 Labs
- Build Your Loop Program: students pick Practice Tracker or Times Table Quiz, plan the loop and its decision in plain words, plan three tests and what each should print, and start building on paper or in CodeGrove
04 Activities
- Plan Your Loop Program: students pick Practice Tracker or Times Table Quiz, plan the loop and its decision in plain words, and plan three tests and what each should print
05 Assessment
- Exit tickets: quick questions that show who needs more help
- Project rubric: what the whole project is graded on, row by row
06 Answer Keys
- 3 answer key files: a key for each day (its bell ringer, notes and exit ticket) and the activity and lab keys
Digital: Google Forms™ + Google Slides™
- 3 Google Forms™ of the exit tickets and the turn-in Form, ready to copy into your Drive
- The multiple choice grades itself, and you grade the written answers
- A Google Slides™ copy of the deck, with the same slides and speaker notes, for Google Classroom™
Online: CodeGrove
- CodeGrove, Practice Tracker or Times Table Quiz level: the online version of the lab on Day 1
- Every online version has a paper version, so no internet is needed
- Free to use, with no accounts or sign-ins
Why teachers love this lesson
The plan marks what belongs insideStudents show repeated steps and decisions in plain words before turning that structure into Python.
Tests check totals and stopping rulesA partner uses hand math or the test table to check results and help the builder find mistakes.
Print and digitalEvery page is a print-ready PDF, and the Google Forms™ and Google Slides™ let you teach the same lesson in Google Classroom™.
Real online activitiesStudents can use CodeGrove, our in-browser code lab, on a computer or tablet, and every online version has a paper version that works with no internet.
A key for every pageEvery day has its own answer key, and every written question has a sample answer and what to look for.
Every day fits a 45-minute classEach day's plan is timed activity by activity against real reading and writing speeds.
What Teachers Say
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How do I get the files after I buy?
Instant download right after checkout: PowerPoint and Word files you can edit, print-ready PDFs, and links that copy the Google Forms™ and Google Slides™ into your Drive.
Can I buy the whole unit or course instead?
Yes. This lesson is part of the Unit 4 bundle and the complete Intro to Python Programming course. Both cost less than buying the lessons one at a time.
Is this AP Computer Science?
No. It is a full-year, non-AP intro to Python course for grades 9 to 12. For AP, see our AP Computer Science A and AP CSP courses.
What should students know before this lesson?
Students can write comments and use math operators, if and else, round() and f-strings.
What formats are the files in?
Every page is a print-ready PDF. The slides are an editable PowerPoint and the guided notes an editable Word file. The exit tickets and the turn-in Form also come as Google Forms™, and the deck as Google Slides™.
Which standards does it cover?
Written for Florida's Foundations of Programming course (9007210). The skills map in the lesson shows which standards each day teaches.