put lessons back for Michael

docs/lessons/flashing-heart/quiz.md

@@ -0,0 +1,25 @@
+# flashing heart blocks quiz
+
+Learn how to create a blinking image with a variable. 
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [flashing heart activity](/lessons/flashing-heart/activity).
+
+Answer the questions while completing the activity. Pay attention to the dialogues!
+
+## 1. Describe what `pause` does?
+
+
+
+## 2. Write the code that leaves an image on the screen for 1 second (1000 milliseconds) 
+
+
+
+
+## 3. Write the code that leaves an image on the screen for 1.5 seconds (1500 milliseconds)
+
+
+