Improving Interactivity in Instructional Design by Developing an ICT-based Social Studies Plan: Case Study of Smart Agriculture in the National Strategic Special Zone of Hyogo Prefecture’s Yabu City

This research aimed at designing a lesson plan in elementary social studies that enhances interactivity by utilizing information and communications technology (ICT). Taking into consideration that lessons created along with students and ICT-based elementary social studies classes enhance students’ learning, and based on the features of iPad, applications, and Zoom, a lesson for the fifth grade—called “Agriculture in Japan-Smart Agriculture in Yabu City, National Strategic Special Zone”—was designed. To clarify the actual situation pertaining to ICT utilization in the classroom, the lesson plan was examined from the perspectives of “information gathering,” “information examination/thinking,” and “reflection.” Information gathering enabled searching the Web for supplementary/additional materials using learning content-related keywords, and also helped share information and enhance teaching materials. Information examination/thinking enabled the use of map-based applications to improve reading skills. Zoom also enabled interaction with persons mentioned in the learning and teaching materials. This way, students could apply their learning beyond the classroom to the real world. LoiLoNote, a class-support application, helped organize thoughts on cards. Like a portfolio, students were able to build a learning history on their own. All these made instant sharing of classmates’ learning possible. Thus, utilizing ICT contributed to upgrading teaching and learning style and designing elementary school social-studies lessons to enhance interactivity

Multi-object and long-slit spectroscopy of very low mass brown dwarfs in the Orion Nebular Cluster

We present the results of an H-and K-band multi-object and long-slit spectroscopic survey of substellar mass candidates in the outer regions of the Orion Nebula Cluster. The spectra were obtained using MOIRCS on the 8.2m Subaru telescope and ISLE on the 1.88m telescope of Okayama Astrophysical Observatory. Eight out of twelve spectra show strong water absorption and we confirm that their effective temperatures are ≤3000K (spectral type ≥M6) from a chi-square fit to synthetic spectra. We plot our sources on an HR diagram overlaid with theoretical isochrones of low-mass objects and identify three new young brown dwarf candidates. One of the three new candidates is a cool object near the brown dwarf and planetary mass boundary. Based on our observations and those of previous studies, we determine the stellar (0.08Peer reviewe

A Common Proper Motion Stellar Companion to HAT-P-7

We report that HAT-P-7 has a common proper motion stellar companion. The companion is located at approx. 3.9 arcsec to the east and estimated as an M5.5V dwarf based on its colors. We also confirm the presence of the third companion, which was first reported by Winn et al. (2009), based on long-term radial velocity measurements. We revisit the migration mechanism of HAT-P-7b given the presence of those companions, and propose sequential Kozai migration as a likely scenario in this system. This scenario may explain the reason for an outlier in the discussion of the spin-orbit alignment timescale for HAT-P-7b by Albrecht et al. (2012)

Search for Outer Massive Bodies around Transiting Planetary Systems: Candidates of Faint Stellar Companions around HAT-P-7

We present results of direct imaging observations for HAT-P-7 taken with the Subaru HiCIAO and the Calar Alto AstraLux. Since the close-in transiting planet HAT-P-7b was reported to have a highly tilted orbit, massive bodies such as giant planets, brown dwarfs, or a binary star are expected to exist in the outer region of this system. We show that there are indeed two candidates for distant faint stellar companions around HAT-P-7. We discuss possible roles played by such companions on the orbital evolution of HAT-P-7b. We conclude that as there is a third body in the system as reported by Winn et al. (2009, ApJL, 763, L99), the Kozai migration is less likely while planet-planet scattering is possible.Comment: 8 pages, 3 figures, 2 tables, PASJ in pres