considerable (adjective) large; important

• Sample Sentence: People often have considerable difficulty talking about mental illness.
• Turn and Talk: Think of an activity you could do for thirty minutes a day to make a considerable difference in your mental health.

contribute (verb) to add to

• Sample Sentence: Therapy, medication, supportive relationships, and lifestyle changes contribute to helping people manage depression and enjoy their lives.
• Turn and Talk: How can each member of a community contribute to keeping it clean?

demonstrate (verb) to show; to display

• Sample Sentence: They may also point to schools that have addressed mental health and have demonstrated improved student achievement overall.
• Turn and Talk: Name some ways animals demonstrate that they feel threatened.

sufficient (adjective) enough; adequate

• Sample Sentence: Many schools do not have sufficient money to hire trained counselors and start successful mental health programs.
• Turn and Talk: Does your school offer a sufficient range of extracurricular activities? Explain.

valid (adjective) defensible; true

• Sample Sentence: They may argue that it is not a valid use of a school’s limited resources, since schools were meant to focus on academics.
• Turn and Talk: Can you think of a valid reason for the U.S. to go to war with another country?