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One Year Membership for Starfall®
·Home Membership (HM) $35 a year
Home use only
Serves a family for one year on computers and mobile instruments. Provides service only for a family. Not for schools, businesses, or other uses.
·Teacher Membership (TM) $70 a year
Teacher & up to 6 students
Serves a teacher and up to six students on computers and mobile instruments. Does not include mobile app. Group Access provides separate home sign-ins (登录) for member students.
·Classroom Membership (CM) $195 a year
Small school or classroom
Serves a single classroom. Mobile app is allowed if a school has only one classroom per grade level. Group Access provides separate home sign-ins for member teachers and students.
·School Membership (SM) $355 a year
Common school
Serves a common school. May be used on all classroom computers and mobile instruments. Group Access provides separate home sign-ins for teachers and students of member schools.
Starfall® Membership Information
▲For new memberships, please include an email address for the person who will act as the manager.
▲If you would like to change the manager email address, please tell us online in the “Notes” on this page.
1．Which only serves a family?| A．HM. | B．TM. | C．CM. | D．SM. |
| A．$35. | B．$70. | C．$195. | D．$355. |
| A．A dairy. | B．A website. | C．A speech. | D．A textbook. |
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
