Final answer:
President Johnson considered education as the 'key' to unlocking the Great Society. He supported the Higher Education Act, which aimed to expand access to education through work-study programs and loans.
Step-by-step explanation:
President Johnson considered education as the 'key' to unlocking the Great Society. In his support for the Higher Education Act, he aimed to expand work-study programs and provide loans for tuition and living expenses to young adults who did not have wealthy family members to co-sign their college loans. This would be done through low-interest loans guaranteed by the federal government, allowing more people to access higher education and improve their lives.