put lessons back for Michael

docs/lessons/looper/quiz-answers.md

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+# looper quiz answers
+
+Learn how to create a series of numbers with a for loop.
+
+This is the answer key for the [looper quiz](/lessons/looper/quiz).
+
+## 1. What is a for loop?
+
+Answers will vary. In general, for loop refers to the code that repeats for a fixed number of times. We specify the LED using x, y coordinates.
+
+## 2. Consider the following code
+
+```blocks
+for (let i = 0; i < 4; i++) {
+    basic.showNumber(i, 150)
+}
+```
+
+If the rectangle below represents the BBC micro:bit, shade the areas that will be displayed. Explain why that particular area is shaded.
+
+Let's create a for loop where `0` is the loop's starting value, `i` is the index variable, and `4` is the ending value. The index variable `i` starts at 0 and increases by 1 each time through the loop. The loop ends when `i = 4`.
+
+![](/static/mb/lessons/looper-0.png)
+
+## 3. Consider the following code
+
+```blocks
+for (let i1 = 0; i1 < 6; i1++) {
+    basic.showNumber(i1, 150)
+}
+```
+
+If the rectangle below represents the BBC micro:bit, shade the areas that will be displayed. Explain why that particular area is shaded.
+
+Let's create a for loop where `0` is the loop's starting value, `i` is the index variable, and `6` is the ending value. The index variable `i` starts at 0 and increases by 1 each time through the loop. The loop ends when `i = 6`.
+
+![](/static/mb/lessons/looper-0.png)
+
+![](/static/mb/lessons/looper-1.png)
+