Table 2.

Design of time-on-task (ToT) observations and heart rate measurements during the lessons

Start		Midway		End
Lesson	ToT observation	Lesson	ToT observation	Lesson	ToT observation
1.1 F&V lesson*	Post-intervention	2.1 F&V lesson*	Post-intervention	3.1 F&V lesson*	Post-intervention
1.2 Regular lesson	Post-control	2.2 Regular lesson	Post-control
1.3 F&V lesson*	Post-intervention	2.3 F&V lesson*	Post-intervention	3.2 Regular lesson	Post-control
1.4 Regular lesson	Post-control	2.4 Regular lesson	Post-control

^*Heart rate measurements were performed.