UNIT ONE IS THERE LIFE ON EARTH？

UNIT TWO THE DINNER PARTY

UNIT THREE LESSONS FROM JEFFERSON

UNIT FOUR MY FIRST JOB

UNIT FIVE THE PROFESSOR AND THE YO-YO

UNIT SIX THE MAKING OF A SURGEON

UNIT SEVEN THERE IS ONLY LUCK

UNIT EIGHT HONESTY:IS IT GOING OUT OF STYLE？

UNIT NINE WHAT IS INTELLIGENCE,ANYWAY？

UNIT TEN PROFITS OF PRAISE