Meetings 26SP

Quick link to Live Python Tutor

Week 1 ¶

Wednesday ¶

• Overview slides
  • Welcome
  • Why computing (and can’t AI do it all?)
  • Support available
• Brief example: logistic map
• POGIL 1.1 together

Thursday ¶

• Lab 1
  • 1.A: “Hello, world” (print, ZyLabs workflow)
  • 1.B: Squares (input, variables)
  • 1.C: Star (turtle)

Checklist before you leave:

• Each partner has submitted a full version of each section.
• You’ve celebrated writing your (first?) interesting programs!

You might want to start on the homework too! Hints:

0. Start with something you know works… like your star.
1. pen.penup()
2. You don’t have to use forward() and right(); you can also use pen.goto()

Also finish Reading 1 and work on Forum 1 and Quiz 1 if you haven’t yet.

Friday ¶

• Lab review
• POGIL 1.2
• POGIL 1.3

Upcoming:

• Quiz 1 (survey)
• Homework 1
• Forum 1
• Reading 2 (Monday)

Week 2 ¶

Monday ¶

• Logistics reminders:
  • Reading 2 due tonight
  • Homework 1 due tomorrow (instructions and submit on ZyBooks)
  • Forum 1 due tomorrow (introduce yourselves, initial response to a video)
  • Week 1 Reflections due tonight
  • Quiz 1 (survey) should be done
• Reminder of support available
  • Study Sessions M/R 7-9pm SB337
  • In-Class Code folder on Moodle
  • CodeHelp
• Intro to retrieval practice (presentation on Moodle)
• Retrieval Quiz 2.1 (on Moodle)
• POGIL 2.1 and 2.3 (skip 2.2) in teams

Wednesday ¶

• AI policy and motivation
• Logistics reminders
  • Readings 1 and 2 should be done by now. (Did you do Participation exercises?)
  • Quiz 1 and Forum 1 should be done by now (let me know if you’ve missed)
  • Office Hours times
• Retrieval Quiz 2.2 (on Moodle)
• POGIL 2.2 in teams (15 min); if finished, review POGIL 2.1 and 2.3
• Reviewing POGIL 2.1 and 2.3 (10 min)
• Slides 2 (20 min)

Thursday ¶

Lab 2:

• 2.A: Expressions Practice
• 2.B: Number Puzzle
• 2.C: Regular n-gon
• 2.D (optional): scalable stick figure

Friday ¶

• Logistics reminders
  • Reading 3: Monday
  • Week 2 Reflections: Monday
  • Homework 2: Tuesday
  • Forum 2: initial posts due Tuesday
  • Quiz 2 next Friday
• Retrieval Quiz 2.3
• Lab review
  • Code style for number puzzle
  • ngons: how did that code work?
  • turtle.circle vs pen.circle
• Break: SIGCHI
• Slides 2
  • identity, value and type
  • int() and float()
  • binary representations
    • Python.org article on floating point
    • this is part of the useful Python tutorial
  • escape characters
  • limits of int and float

Week 3 ¶

Objectives this week:

• Main objectives
  • Distinguish sequence types from other types
  • Use and recognize string concatenation
  • Create and manipulate lists
  • Use basic list methods and functions including: append(); pop(); remove(); + for concatenation; len(); min(); max(); sum().
  • Compare and contrast string, lists, tuples vs. dictionaries
  • Create and manipulate dictionaries (add new entries, update values, remove entries)
  • Explain how numeric and string data can be represented in a machine
  • Explain how fixed-length number representations affect accuracy and precision.
  • Compare representations of integers to floating point numbers
  • Describe underflow, overflow, round off, and truncation errors in data representations.
• Others
  • Use square brackets to index into a string
  • Be able to convert numbers between base 2 (binary) and base 10 (decimal)
  • Use the math module to perform calculations

Monday ¶

• Retrieval Quiz 3.1
• Logistics reminders
  • Reading 3: tonight
  • Week 2 Reflections: tonight
  • Forum 2: initial posts due tomorrow
  • Homework 2: week from tomorrow
  • Quiz 2 Friday. Format: questions like
    1. The following code is intended to something, exactly as we did in some class/lab/homework exercise. But it does not work as intended. (1) Circle one error, (2) Describe what is wrong (in a short phrase), and (3) Rewrite the code to fix that error.
    2. Give the value of the following Python expressions when evaluated in the Shell. (If an error would occur, describe what error occurs and why.)
    3. Suppose x = some expression. Which of the following would print some value? (circle one letter)
    4. Which of the following is the best definition of term from Unit 1 or Unit 2 list of terms
    5. Fill in the blanks so that the program below prints something.
• POGIL 3 in teams
  • Model 1 (Lists, 10 min)
  • Model 2 (Sequences, 15 min)
  • Model 3 (Dictionaries, 20 min)
• Review

Wednesday ¶

• Retrieval Quiz 3.2 (and finishing 3.1 if needed)
• Logistics reminders
  • Quiz 2 IN CLASS Friday. Review the readings, POGILs, slides, retrieval quizzes, etc.
• Slides 3
  • Assignment statements vs item assignment statements

Thursday ¶

• Lab 3.A: types practice
• Lab 3.B: login id (string operations)
• Lab 3.C: sorting (list operations, algorithms)
• Lab 3.D: scores (dictionary operations)

Friday ¶

• Logistics reminders
  • see the Moodle Calendar
  • Quiz 2 IN CLASS today
  • Reflection 3 due Monday
  • Forum 2 revised posts due Tuesday
• Retrieval Quiz 3.3
• Lab code review
• Slides: data structures review; is tech neutral?
• Quiz 2

Week 4 ¶

Objectives ¶

• Recognize conditional expressions
• Use relational and equality operators
• Define and use boolean operators and expressions
• Apply precedence rules for boolean operators
• Define and use membership operators
• Define and use identity operators
• Use appropriate indentation for correct execution and clarity
• Choose appropriate conditional constructs for a given programming task.

Monday ¶

• Retrieval Quiz 4.1
• Logistics reminders
  • Reading 4: tonight
  • Reflection 3: tonight
  • Forum 2: revised posts due tomorrow
• Motivating conditional logic
• POGIL 4 in teams:
  • 10 min: Model 1 (comparison operators) you should hit 2 errors in the table
  • 15 min: Model 2 (if statements)
  • 20 min: Model 3 (boolean operations)

Section A will do some exercises based on this template, which uses the wordfreq package:

import wordfreq

words = []
for word in wordfreq.iter_wordlist('en'):
    words.append(word)
    if len(words) > 1000:
        break

longest_word = max(words, key=len)
print(longest_word)

Wednesday ¶

• Retrieval Quiz 4.2
• Logistics reminders
  • Forums: include last initials when citing
  • Homework 3 due next Tuesday (on ZyBooks)
  • Forum 3 initial posts due next Tuesday
  • Quiz 3 on Moodle any time between now and Monday noon
• Review Quiz 2
• POGIL 4 review
• Maybe: Return to Slides 3 to discuss Perspectives question
• Slides 4
  • bool type
  • if statements
  • else and elif
• Lab 4.A together

Thursday ¶

• Encouragement:
  • We’re getting into more difficult material now.
  • It’s normal to feel like you’re not getting it. Keep practicing and be patient with yourself.
  • Resources to help:
    • Study Sessions (tonight and Monday night)
    • Office hours
    • CodeHelp
  • Our World Belongs to God
  • Psalm 23:1-3
• Lab 4
  • 4A: Automobile service cost (if statements, else, elif – you’ll need all of them.)
  • 4B: Checkerboard (boolean operations, preview of functional abstraction, loops, and flag variables). Suggestion: row_is_even = ___, col_is_even = ___.
  • 4C: Zeller’s Congruence
  • 4D: Wind Chill

Friday ¶

• Retrieval Quiz 4.3
• Logistics reminders
  • Reading 5: Monday
  • Reflection 4: Monday
  • Homework 3: Tuesday
  • Forum 3: initial posts due Tuesday
  • Quiz 3 on Moodle closes before class Monday
• Lab review
• Slides and exercises
• Areas of Computing Highlight: SIGGRAPH. Video - last year video

Week 5: Looping ¶

Monday ¶

• Logistics reminders
  • Reading 5: tonight
  • Reflection 4: tonight
  • Homework 3: tomorrow
  • Forum 4: initial posts due tomorrow
  • Quiz 3 closes now end of day today
  • Quiz 4: in class on Friday
• No retrieval quiz today.
• POGIL 5 in teams
  • Model 1: for statements (15 min)
    • Report: What is x? (#6)
    • Report: What if we use [] in the loop? (#4)
  • Model 2: The range function (15 min)
    • Report: When would you use for-in-range vs for-in-list?
    • Skip 13c, it’s tricky.
    • Hint: chr(65)
  • If you’re getting ahead, you may go to Model 3: while statements, but otherwise we’ll finish these on Wednesday.
• Exercises involving loops

Wednesday ¶

• Retrieval Quiz 5.2
• chr(65) reminds me of the Unicode Slide Show
• Optional Scripture: Genesis 1 (slide)
• Logistics reminders
  • Quiz 4 in class on Friday
  • Forum 4 revised posts due next Tuesday
    • Reminder to cite other students. Cite different people than Forum 2.
    • Use paragraphs to organize your thoughts.
    • Use last initials (at least) when citing other students.
  • Homework 4 due the following Tuesday
• POGIL 5.3 (while statements) (15 min)
  • Review the Teacher version if you finish early; start writing Week 5 Reflections.
• Slides and exercises
• Intro to Homework 4
• If time: Lab 5.A together

Study strategies we discussed together:

• Retrieval quizzes (emphasize questions you missed)
• POGIL: start with blank ones, check if you can answer the questions easily
• ZyBooks: retry Participation exercises, try the Challenge problems
• Study Sessions (M/R 7-9pm SB337)
• Slides: we don’t always go through every exercise in the slides, so focus on the ones we didn’t do, as additional practice
• Labs: pick a few, try to re-do them from scratch on your own
• Office hours

Overall:

• Study together
• familiarity != understanding - just because it looks familiar doesn’t mean you can do it on your own.

Thursday ¶

Lab 5

• 5A: range practice
• 5B: Hailstone (while loop, if statements)
• 5C: Binary (while loop, accumulator pattern)
• 5D: Spirograph

optional labs:

• 5E: sum of numbers in range (accumulator pattern)
• 5F: cumulative sum (accumulator pattern again!)

Friday ¶

• Retrieval Quiz 5.3
• Logistics reminders
  • Reading 6: Monday
  • Reflection 5: Monday
  • Forum 4: revised posts due Tuesday
  • Homework 4: week after Tuesday
  • Quiz 4: in class today
• Lab review
• Slides and exercises
• Quiz 4

Week 6: Functions ¶

Monday ¶

• Retrieval Quiz 6.1
• Logistics reminders
  • Reading 6: tonight
  • Reflection 5: tonight
  • Homework 3 should have been due last Tuesday but was accidentally marked “optional” on ZyBooks; bumped to tomorrow
  • Homework 4: week after tomorrow
  • Forum 3: revised posts due tomorrow
  • Quiz 5 on Moodle this weekend
• Demo of functions: turtle graphics (shapes, click handlers)
• POGIL 6 in teams (refer to POGIL 6 code)
  • Model 1: Flow of Execution (20 min)
    • Don’t worry about “drawing” on your PDF (questions 8 and 12)
    • To convert a string x to a list, use list(x)
  • Model 2: Passing Arguments (15 min)
  • Model 3: Returning Values (10 min)

Wednesday ¶

• Retrieval Quiz 6.2
• Logistics reminders
  • Quiz 5: on Moodle, opens Friday, closes Monday before class
  • Homework 4: due next Tuesday
  • Forum 4: initial posts due next Tuesday
• POGIL 6.3 in teams (15 min)
  • Model 3: Returning Values
  • If you finish early, review the Teacher version
• Slides 6
• Lab 6.A together

Thursday ¶

• Review local vs global scope from Slides 6
• Lab 6
  • 6A: functions practice
  • 6B: search
  • 6C: unique

If you finish early, you can:

• Do the optional labs from last week
• Try this drawing lab.
• Extend the checkerboard lab so that the user can click on a square to change its color.

Friday ¶

• Retrieval Quiz 6.3
• Logistics reminders
  • Quiz 5: on Moodle, closes before class Monday
  • Reading 7: Monday
  • Reflection 6: Monday
  • Homework 4: Tuesday
  • Forum 6: initial posts due Tuesday
• Go over Quiz 4
• Lab review: compare lab 6 code with someone you didn’t work with.
  • What was challenging?
  • What was the point of get_unique_words?
  • Try it out with some text files of your own.
• Slides and exercises