Martha Shapp

Let's find out about babies

1974

Let's find out what electricity does

1961

Let's find out what's light and what's heavy

1961

Let's find out about water

1962

Let's find out about safety

1964

Let's find out about fishes

1965

Let's find out about the moon

1965

Let's find out about the sun

1965

Let's find out about trees (Arbor Day)

1970

Let's find out about Jewish holidays

1971

Let's find out about animals of Africa

1972

Let's find out about cavemen

1972

Let's find out about houses

1975